Just did this change after switching to T-moblie home internet after having terrible ping in gaming. Went from 80-95 ping with a lot of major spikes all the way up to 350+ to doing this mtu change to 1428 (1500 before) and ping is down to consistent 50-58 ping in game. Thank you for the help.

@NaterTater

Жыл бұрын

Nice

@pacorobles5903

Жыл бұрын

Hey can u help me out.

@OG_BeeRad

6 ай бұрын

@madmaddox4255 what about your loaded ping? did that get better?

@jimthom

4 ай бұрын

Were you able to change it with the T-mobile gateway? I cannot find where to make that change on mine.

@NaterTater

4 ай бұрын

You cannot, must be done on a 3rd party gateway/router or device

Sprint used to have reg files (not sure if that was same thing as MTU or not) that could be changed back and forth with way back in the day of Sprint Wireless home internet. Those funny square microwave antenna's you might see on the West coast. Those were the days lol.

Hey, I am not sure how many of your viewers are having the issue of Connect/NO Internet from Arcadyan Gateway. I discovered a workaround on this issue until T-mobile can fix it. It appears If you run a continuous stream, such as a live feed from a nest cam to a device on the network, such as as android phone the internet will stay up. At the moment my issue is as soon as all connections become "Close_Wait" state, the gateway will drop it connection to the internet. The gateway in this state is able to received text message. This requires a reboot of the gateway. I have tested this for the last 5 days and it work without going down. I did verify the issue by turning off the cams and within 10mins the gateway went back to Connect/NO internet. This issue became very apparent when T-mobile changed our service from band 2/N71 to Band 66/N41. The band change did bring an increase in speed to 600mb/50 without the need of any modifications to the gateway.

@NaterTater

Жыл бұрын

Interesting, thanks for sharing!

Actually, Path MTU Discovery (PMTUD) is used today. It's used for everything with Linux and TCP with Windows. It's also mandatory for everything with IPv6. With PMTUD, fragmentation is not used. PMTUD sets the Don't fragment flag on IPv4. There is no such flag on IPv6, as there's no need for it, because routers are not allowed to fragment. VoIP packets are generally smaller than even the smallest allowable MTU (576 on IPv4 and 1280 on IPv6). 1500 is the standard, unless you're on ADSL, where it will be 1492, to allow for the additional header. When I first used the Internet, back in the mid 90s, it was 576 over a dial up SLIP connection. As you mentioned, the speedtest variation is greater than that difference you claim to see. I have seen some really large differences between multiple passes. I'd suspect your VPN issues are caused by something else. I use OpenVPN, which just adds a UDP header in front of the encrypted packet. NO issues at all. BTW, if your parcel is to big for USPS, you don't have to worry about cutting it in half. The posties will happily destroy it for you. ;-)

Thumbs up and subscribed!

@NaterTater

Жыл бұрын

Awesome thank you!

Thanks for the clarification. I had play with my MTU when I was on T-Mobile but did not know about adding the 28. I am on VZW now because my T-mobile kept dropping the connection. I am not seeing a huge increase in speed maybe 10 Mbps down. The ping is a little better too. I had set my router back to 1500 because I could not really find much info on VZW. But video helped.

@Placesandspaces35

10 ай бұрын

Verizon’s recommended mtu I believe is 1428.

I honestly don't know why I'm here but I enjoyed this video, now I'm wondering is it possible to make it switch to low packets to high so like when your on a online virtual server it makes it so on there end they interacted with you while on your end they didn't!

Thank you for this I went from 16mb/s to 32mb/s by changing the MTU from 1500 to 1452 and I have just bought the MIMO 4x4 Antenna upgrade as I live in a wooded area in West Knoxville, TN and I only get 2 bars of 5G

@NaterTater

Жыл бұрын

Awesome!

@davidmorris4311

Жыл бұрын

I have 4 bars with 4x4 yagi antennas and get less than 4 upload and less than 10 download. This stuff is horrible.

Can we find out an optimal mtu for a certain activity/program? My internet is fine if used for anything beside online gaming, the moment i do gaming the packet loss is unreal.

Can you help me find mine?? I've tried several ones and I can’t get any good results from them. Also, my router is set to DHCP, should it be Static IP? If so what do I need to key in for it?

does it depend for ethernet too? for ethernet mtu=1500 and for wifi mtu=1492 but i dont use wifi cuz i get packetloss in games

In my experience, if you cut a package in half and expect USPS to put it back together, they just wont ship it. You must have an exceptional USPS staff where you live! 🤣🤣 But, thanks for these videos and continuing to look for ways to improve signal and speeds on these units! Much appreciated!

@NaterTater

Жыл бұрын

We do have a great USPS mailman but yea there aint no way a half package is making it anywhere! Its the thought that counts. 🙂

With most cable based, Public/Private WiFi, and fiber service providers the MTU value does not need to be changed from 1500. Other types of providers that use PPPoE typically result in an 8 byte overhead leaving you with a 1492 MTU. T-Mobile does indeed have a 1420 byte MTU as relayed by others on this thread. There are indications as reported on the Internet that T-Mobile uses 464XLAT but that does not explain such a low MTU on its own as it does not incur an 80 byte overhead (would be interested to know what that is if others know). The are other service provider scenarios that can impact the MTU such as the use of DS-Lite, LW4Over6, MAP-E, and MAP-T. Your VPN provider (such as Nord or Express) will also impact your MTU size The ping tool technique utilized in this video is correct and will allow you to set the right MTU on your attached devices. Only problem with this approach is that it typically does nothing to fix the other side of the connection (the server) in most cases for traffic that is not TCP. Most servers assume a 1500 byte MTU and will not adjust if PMTUD is not supported. Therefore non-TCP traffic that is larger than the supported MTU will likely get fragmented by T-Mobile. The MSS term is mis-used in this video as it is a specific header attribute of TCP. I mention TCP as not being impacted as it is likely that T-Mobile utilizes a technique called MSS clamping on their router to ensure the clients and servers set a segment size that will fit in the 1420 MTU. TCP is more consistent with its use of PMTUD which will ensure proper segment sizing in many cases (even without MSS clamping). So in all these cases it is highly unlikely that you will experience fragmentation when using TCP (which as things stand is the majority of most peoples non-VPN traffic). QUIC which is an emerging protocol that uses UDP (heavily used by google including in youtube) should fit without fragmentation in an MTU as low as 1420 All this being said unless you have a specific excessive fragmentation issue with VPN (or non-function in the case of DF-Bit 1 based VPN) you should avoid messing around with the MTU unless you truely understand your end-to-end environment and all the networking concepts I relay in this comment. There are no performance or functional gains to be had for the vast majority of Internet applications.

@NaterTater

Жыл бұрын

Thanks for all the details Jordan!

@James_Knott

Жыл бұрын

464XLAT is a means of transporting IPv4 over IPv6 and is used on 4G and 5G cell networks. However, I don't know what overhead is required or if it still allows 1500 MTU. I'm on Rogers and the mtu is shown as 1500 on both IPv4 and IPv6, but I haven't tested it.

@James_Knott

Жыл бұрын

I just tested with 464XLAT. When connected via Ethernet, I get the usual 1472 maximum ping size with IPv4. However, when I connect via my cell phone, which uses 464XLAT, I can't even ping with IPv4, though I can with IPv6. However, with IPv4, the error message shows the MTU to be 1412 for IPv4. I expect the ping reply is being blocked by the CGNAT or 464XLAT. Both my cable modem and cell service are provided by Rogers.

@izi.s0sa

Жыл бұрын

bro wrote his life story

@adrewbateman1760

Жыл бұрын

@@izi.s0sa reading the who,e Bible woulda been shorter

I ditched my recently purchased 😢 eero mesh router to another because the eero wouldn’t allow me to change my packets size. Constantly had “no WiFi available“ issues. Peter Carcione identified my problem and suggested this solution. Since I’ve changed router and set my packet size to t-mobile’s 1420, my WiFi has been consistent and I haven’t had to reset my system for over 2 months. My ping is only slightly better but my zoom video and everything else is solid and stable now. I’m somewhat remote and have mountains blocking signals so as with everything “mileage may vary” with everyone’s specific situation.

@h.al.8801

Жыл бұрын

I called. They are actually upgrading my towers. They even created an escalation. In 1 week I should see the difference.

@NaterTater

Жыл бұрын

They tell everyone that. True some of the time.

@h.al.8801

Жыл бұрын

@@NaterTater I have an apt on Wednesday to see If it I am happy with the service or I am cancelling.

@BudFuddlacker

Жыл бұрын

@@h.al.8801 they told me that 6 months ago. I am now a Verizon Home Internet customer. Take that as you will

@h.al.8801

Жыл бұрын

It looks I am abandoning the sinking ship...

I just picked my KVD21 up yesterday and setup today. Not a fan of the GUI and lack of settings. I plugged straight into my TP-LINK ARCHER AX11000 Router and working just fine. On my cable internet I was pulling 170/9, with TMO I'm getting 75/18, going through my AX11000 router with OpenVPN enabled on router with SurfShark client. I live alone so speed is just fine at 75/18, my issue was cable internet constantly goes down. We'll see how this works.

@Bryan-Hensley

Жыл бұрын

The tower probably uses the cable company for backhaul. Most of the cellphone towers around me use CenturyLink (our local phone company) for backhaul services. I'm lucky, the t mobile tower uses AT&T intrastate fiber.

its work thx bro

@NaterTater

Жыл бұрын

Good to hear

@lukeyna1

5 ай бұрын

What was the before and after improvement?

T-Mobile Arcadian GW and I'm seeing 1480 (1452+28) as the optimum size and it's hard to say if it made a difference ad any speed test change is within the noise in speedtest data

@Kiyoshi128

Жыл бұрын

I agree

It does not seem to effect the ping much at all but does seem to effect the up & down speed, too low & the up speed goes to crawl 1420 does seem the be the sweet spot for me, I suppose it could be a fluke but I'm resting there for now TCPOptimizer makes it easy to tweak these & many other settings.

Do you change just change MTU on the modem/router, or do I need to change it for laptop, mesh router, too?

@James_Knott

Жыл бұрын

Actually, DHCP should tell the connected devices what MTU to use.

Once you have established the maximum buffer value that you can use, add 28 to that value (to account for the size of the packet header). That will be your maximum MTU value. In my case, the maximum buffer size was 1472. When I add 28, I get the previously mentioned value of 1500. Incidentally, 1500 will usually be the maximum MTU value, but depending on your network, it could be higher or lower.

@09jlivers

Жыл бұрын

Did you just comment everything he already said in the video? Why?

@dilbertdoe601

Жыл бұрын

@@09jlivers 😀

Ping and Net playstore app says Arcadia unit is 1480 administered on second Linksys router .

My tower seem to be odd. I very seldom get over 100 Mbps download but I get 35 ping and 150 to 225 loaded ping. My upload runs 60 Mbps with around 175 loaded ping.. this is straight off the built-in WiFi of the Nokia.

Mine seems to be 1452 add 28 to it 1480 is that due to firmware i have Arcadian ?

Anything I can do to combat peaks on a congested node? I work from home while using AWS so these peak times are messing with my work. Any advice would be much appreciated 💪🏽

@NaterTater

Жыл бұрын

You can tower/band/node lock with some 3rd party routers like kzread.info/dash/bejne/a2aIztCqidCTh9o.html

You are one hundred percent correct. I got worst speeds doing this. Also my ping was worst as well.

I have a Asus router my self I went to the same section as you did but there is no option for the mtu is there other settings that need to be changed or do I need to connected with a Ethernet cable instead of wireless?

@NaterTater

Жыл бұрын

Merlin firmware

Do you recommend a separate router for advanced settings like this? Is the google nest mesh router fine for this?

@NaterTater

Жыл бұрын

I personally don't favor the Google Nest mesh, its to "smart" for you and doesn't let you change a lot of settings.

If I'm using an external wireless router, after turning the wifi off the gateway, should I LAN my PC from the gateway or from the wireless router? I'm not seeing the WAN option for changing MTU size and I wonder if it's because I'm hardwired into the gateway.

@NaterTater

Жыл бұрын

That wont affect the availability of MTU settings (some routers dont let you change it).

I wonder if you can recommend a router to use with my tmobile Nokia gateway. I try the DYNALINK which has been spoken about well and the asus RT-AX55 and they generate less speed then the Nokia gateway. TheDynalink being the worst as I only get 1/3 the speed and the asus about 80%. I have busted my head with these two. I change MTU on the Nokia. I cannot change it on the asus because there is no avenue to do so. If you have time, I would appreciate your input. Love your breaking down everything on the T-Mobile stuff.

@NaterTater

Жыл бұрын

I use the Asus setup and get full speed. Download the Merlin firmware for the asus and then you can change MTU. See kzread.info/dash/bejne/qGamsbmgd9iuctI.html another thing you can do is switch off DHCP server on the Asus and let t-mobile assign IP addresses.

@huongyn8808

Жыл бұрын

@@NaterTater I am going to do this! Thanks for sharing!

should i leave my router connected to t-mobile gateway or change router to access point? Thank you for you videos

@NaterTater

Жыл бұрын

Depends on your needs. I use features of my personal router so I leave it as a router. It will work with your in AP mode if that's preferred.

Nate . I adjust my MTU on my TP Link router after this video came out and T Mobile Nokia running fine. My question now is I will be using Firewalla as a dedicated router with firewall and hooking that up to my TP Link router which will be set to AP mode. Unfortunately I can't change MTU on the firewalla software. If my MTU was originally changed on my TP Link router will that still work if it's in AP mode now. Many thanks. Anthony

@NaterTater

Жыл бұрын

Hey Anthony, yes I think you will still be covered by the tp-link custom MTU size. You can actually change MTU on the Firewalla but it requires sending SSH commands.

@AAtta-3286

Жыл бұрын

@@NaterTater Your the man Nate! Always there for informative video's, insite and helpful answers. I saw that about SSH and Firewalla before bothering you, but went right over the old guys head. Glad to hear the MTU change will still remain in AP mode. Hope you and the family have a happy and healthy holiday. 🧑‍🎄🎄

The biggest issue with 5g home internet is the latency. Most households have gamers and they have to have low latency.

Just so I am clear: Turn off the wifi for the TMHI router first (using your other videos), thus only using my own router that is plugged into the TM gateway. Then go through this process to change the MTU numbers on my own router settings?

@NaterTater

Жыл бұрын

Yes

Hmm, If this is for your home then you don't need to be or want to be on WAN. You will always get lower speeds with WAN because it's Wide Area Network and spreads out over a large distance. LAN is where it's at if it's a home network. Even if you have a separate building on your property...you would just need a good network adapter for range or cellular antenna to make the range larger. Local is always faster but it depends on your needs too

@NaterTater

Жыл бұрын

All the on property is LAN but at some point you have to go to WAN to access the internet.

Setting the MTU on your PC will net much better results than setting it on your router. When you set your router to 1420 and your PC is still at 1500, your PC is going to send 1500 byte packets (frames, actually, but not important for this discussion) and your router now has to fragment those packets, which incurs CPU cost and naturally some latency because the router has to stop and do work on that packet before forwarding it. You're just shifting the duty of fragmenting those packets from the gateway to your router, and while your router might be slightly better equipped to handle that task, it's still far from optimal. When you set the MTU on your PC, the TCP/IP stack (drivers) are only going to build packets of size 1420 or smaller. Neither your router nor the gateway now have to fragment the packets. Ideally, set it in both places. Set it on your router because not all devices on your network will let you set an MTU, and for those devices the router will do the work to fragment packets when needed, and then for any device where you can set the MTU, setting it on the devices themselves lets the operating system know to only build packets to that size before sending them. As long as the router and other devices are all set to the same value, the router will never have to fragment traffic from those devices and will just pass it on through.

@James_Knott

Жыл бұрын

Read up on Path MTU Discovery (PMTUD) and you'll find fragmentation is not used. With PMTUD, the Don't fragment flag is set on IPv4 and fragmentation is not even allowed on IPv6.

@keithr-

Жыл бұрын

@@James_Knott In theory, yes, however in reality this is not the case. PMTUD is not universal as it relies on ICMP which is blocked by many networks. When PMTUD fails, it falls back to the default (or coded) MTU. In many/most carrier networks, due to CGNAT, ICMP isn't going to get back to your endpoint. IPv6 is a bit of a different story, but as much as we're not supposed to still be using IPv4, we are. PMTUD is an optimization, not a requirement. When it works, it's nifty. When it doesn't work, which is often, it's ignored and the MTU is the MTU.

Hello. Just got the T-Mobile Internet Service and trying to figure out how to change the MTU on the Gateway itself. Is it possible? There seems to be no interface for it. Also, I have an Eero Mesh setup and I am unsure how to change the Eero's MTU. Would you be able to help? Thank you for your informative videos. :)

@NaterTater

Жыл бұрын

Neither of those allow MTU changes.

Can you make a video installing a mimo antenna on the new sagemcom t mobile router?

@NaterTater

Жыл бұрын

Yes! Coming soon

Request - Would like to see a antenna install on a T-Mobile Sagemcom-Fast-5688W "The new/newest one". I'm having issues getting good signals 1-3 bars and not able to connect everyday that I need to for work. Still have to use my old internet service.

Testing MTU size doesn't apply as it should when using any OTA carriers (3G/4G/5G/Satellite) as the signal fluctuates so much. It it more for folks using hard wired internet connections (DSL/Cable/Fiber)

@Vulcankrypto21

Жыл бұрын

It may not be meant for it but those that are saying it’s actually improved and helped then it is for both lol

I set mine as 1452 cause google said that’s the most optimal? Is that right

New subscriber here. Have you covered the reason why the t-mobile 5g home internet goes down or blips for a minute?

@NaterTater

Жыл бұрын

Packet size could be one reason. Another is poor/marginal signal (try moving gateway or adding external antennas) and could try a custom DNS.

@comixof2morrow

Жыл бұрын

These Gateways also have printed board antennas in them and you have to aim it right too towards the window. It's best to remove those built-in antennas and hook up some Proxicast cellular antennas. It's easy and there are video tutorials

I’ve been using T-Mobile internet for a while now and all of the sudden I can’t play Xbox online. When I check my network settings it says NAT Type: Strict and UPnP not successful. This has been going on for a week now. How do I fix this?

@NaterTater

Жыл бұрын

VPN or new ISP

does it make more sense to set the MTU Size at the router or the individual PC's?

@NaterTater

Жыл бұрын

Router but either work

i have a ASUS RT-AX55 but it doesnt have the option to change the MTU packet size. Is there a way to set it outside the router?

@NaterTater

7 ай бұрын

You need to install the Merlin firmware

i don't think setting it specifically on the router side overrides the windows default of 1500.. i could be wrong though as i haven't tested it (would need to use a packet sniffer for fragmentation)

@NaterTater

Жыл бұрын

Setting it on the router should limit the max packet size going to the WAN. If you set a smaller value on the computer (than router) I think it might honor that?

Only few router haves fragment threshold wifi

I was wondering when you would make this video. I did this tweak on my devices over a year ago with T Mobile. When you set the MTU size to 1420 in the router settings, does that mean you can leave the devices connected to it at 1500? I haven't looked into this yet.

@NaterTater

Жыл бұрын

Correct, you can leave your devices at default. If you were to lower their MTU size to smaller than the router then it would hold that size I believe.

I have a ASUS Rapture Router. I can only change the MTU if i switch it to a PpoE but then I don’t get any internet when it’s on PpoE, What am i doing wrong?

@NaterTater

Жыл бұрын

Try using the Merlin firmware

When I go into the the CMD, does that set the packet size, or do I have to get inside the gateway?

@NaterTater

Жыл бұрын

You dont have to get inside the gateway. The steps in this video is how you do it.

@stevenlightner1658

Жыл бұрын

@@NaterTater Thank you, I love your videos.

i have asus router and do not see mtu option do you have to enable something to see it or does my router not support that?

@NaterTater

10 ай бұрын

Merlin firmware

How can I do this on android?

my ping reduce but my jitter is inconsistent between 4ms to 20

If you have Verizon 5G/4G Home Internet, do you set the MTU to 1428? I see you can set the MTU size in the gateway.

@NaterTater

Жыл бұрын

I leave mine at the default.

@mugen2002

Жыл бұрын

@@NaterTater I just received a Verizon ARK cube gateway for LTE service today. After some testing, I found that MTU above 1400 causes packet loss during the ping CMD test. I tried the Gateway's Network(Home/Office) and Ethernet set to Auto(sets it to 1500, based on user manual) and manually to 1500, but both gave the same results. I can't have a device set to MTU 1500 and not have packet loss. With that being said, should I set the ARK cube to MTU 1428 in the Network(Home/Office) and leave the underlying devices(5ghz/2.4ghz/Ethernet) set to Auto or set them all to manual MTU 1428?

Mine is 1472 that passes the test, 1500 does not. 1472 plus 28 = 1500. should I leave it at 1500?

@NaterTater

Жыл бұрын

Yes

I'm using asus rt ac86u. The mtu option doesn't show up for me unless I select "PPPoE" can you help me get to the mtu setting?

@NaterTater

Жыл бұрын

Are you using Merlin firmware? If not install that on your router.

@ryanmcmullin3567

Жыл бұрын

@@NaterTater not yet. Doing that now

Hello for verizon 5g home gateaway I can't seem to find the mtu option

@NaterTater

Жыл бұрын

I dont think there is one on the gateway. This would be on your personal router or device.

okay i dont have another router can u change the mtu on the tmobile box ??

@NaterTater

7 ай бұрын

nope but you can change it on many devices like game consoles, computers, etc

Nater do I need a PC to change packet size or smartphone???

@NaterTater

Жыл бұрын

Either works

How would you go about changing it without a router all I got is the tmobile trash can

@NaterTater

Жыл бұрын

You can change it on your computer but it would only apply to that computer.

I have 28 for a ping 4 to 5 bars but sometimes I only get 30 mbps, doesn't seem to effect anything Why does this happen ? Mostly I have 150 to 200 mbps

@NaterTater

Жыл бұрын

Network congestion

I've searched your videos and I'm trying to figure out can I get faster speeds with tmobile home internet and a asus ax3000 RT-AX58U I just can not get faster then 78 mbps

@NaterTater

Жыл бұрын

What speeds do you get via ethernet directly to the tmobile gateway?

@jeremylatham5243

Жыл бұрын

That it 78 mbps and that's with a very good signal strength

@NaterTater

Жыл бұрын

@@jeremylatham5243 you can't speed up the gateway internet speed with a router. You have to move the gateway or add external antennas to speed it up. Then use a router to spread that signal where you want.

My Linksys router has the MTU set to 'Auto'. Should I leave it that way?

@NaterTater

Жыл бұрын

Good question. You could try this and set it manually, if you see no improvement then I'd probably leave it at Auto.

@James_Knott

Жыл бұрын

Auto would get the size from DHCP.

How do I change the value if I only have the 5G Gateway?

@NaterTater

11 ай бұрын

You may be able to change it on your device (ie tablet, phone, computer, etc).

I have a asus rt-ax82u and followed your instruction on how to set up your own router with versizon 5g. So i am following this vid and i do not show an option to change mtu. I do not have the wan index option on top and special requirements from isp section. Can you advise how i can acces this?

@NaterTater

Жыл бұрын

Install Merlin firmware

@DiMoNJ2

Жыл бұрын

@@NaterTater thank you

I need to know how to do it with the arcadyadin one

@NaterTater

Жыл бұрын

its the same process. You need your own router to change the MTU size.

@coreybabcock2023

Жыл бұрын

@@NaterTater ohh ok thanks nate

I'm getting 332 on the download speed straight out of the box getting 3 to 4 bars signal strength.

@RonKris

Жыл бұрын

Bragger

@Zxfase

8 ай бұрын

thats what mine did then it went down to 30 mbps

Can I buy a antenna for a new gateway 5g my speeds are very slow

@NaterTater

Жыл бұрын

Yes, see this playlist for videos on add external antennas kzread.info/head/PL8d9FovK2dNS1HuMabIm8hspYa7nlXpPP

@chadburdine3301

Жыл бұрын

I have the newest gateway I took it apart it don’t have the m1 and d like your video

Most people will never see these speeds. Not even close. This test needs to be done in a location that has poor cellular coverage and no landline option.

@NaterTater

Жыл бұрын

I disagree but also that has nothing to do with setting the optimum packet size. Optimum is completely independent of your connection speed.

@Phalanx443

Жыл бұрын

That would be my house. The tower is over 5 miles away for wifi and cell service is absolutely abysmal. They work, but the speeds are trash.

@natertater Nate, it's a great video all the way till 10:33 in the video. The problem is that the remainder of the video went downhill fast with the wrong conclusions The MTU adjustment on the router is to prevent the router from segmenting the packets. Initially, your router was set to 1500-byte MTU, which means that it would allow standard 1500-byte packets (including the 40-byte overhead for IP/TCP headers) to traverse the router unfragmented. In your ping test to discover the packet size that can go unfragmented to the destination you pinged, you discovered that MTU of your Internet pipe was 1392 (set in the ping packet size) +28 (the ICMP overhead) = 1420 bytes, which means that your ISP fragments the packets that exceed 1420 bytes. Therefore, you then lowering the MTU in the router to 1420 did ABSOLUTELY NOTHING to either improve or worsen your connection. What you did was to match the MTU set somewhere in your ISP network to the MTU set in the router. Now, what you should have done to demonstrate how the MTU affects the latency is to lower the MTU in your router to a value below 1420. This would cause your router to start fragmenting the packets exceeding 1420 bytes, which COULD (but not always) induce additional latency. There is a protocol called PMTUD (Path MTU Discovery). This protocol works by setting the "DO NOT FRAGMENT) bit in the outgoing packet, and so the devices programmed to fragment packets lower in size than 1500 bytes will not fragment the packet when the packet reaches it, but instead it would send an ICMP response back to the sending devices (your computer) to signal the size threshold at which the packet needs to be fragmented. The sending devices (your computer) will then change the size of the packet to slide below the threshold, which will obviate for the fragmenting device along the path to fragment the packet, thus reducing the path latency. At this point, the latency will only be induced by the sending device, which will need to make sure that the packets it sends conform to be below the fragmenting threshold. PMTU is contingent on being able to receive the ICMP response Fragmentation Needed (Type 3 Code 4) by the device sending the original packet, so the firewall needs to allow ICMP responses (at least of this type) to reach the sending host. This is the best way to improve the latency - to allow the PMTU protocol to work.

@NaterTater

10 ай бұрын

Great info, thanks for sharing. I'm assuming the tmobile provided gateway supports and is using PMTU and the changes I demostrate are made are on a different device/router. The goal here is to control the packet size at my personal router rather than have the tmobile gateway do that as it appears to be slow at doing that for high traffic rates. So feeding the tmobile gateway 1420 sized packets should eliminate the need for resizing and reassembling.

As nice as all that is, Nate, the phone app to login fails every time and wants to continually run through setting up the device, when it's already up and running. And, as usual, T-Mobile hasn't a clue as to what's happening or why or how to fix it.

@NaterTater

Жыл бұрын

this process doesn't use the T-mobile apps

I'm using a t-mobile 5g router with the wifi off, with a Asus ROG Gt AX11000 router and my mtu is at 1500 and I'm getting 500mb+ download and right at 120mb+ upload speeds. Changing the mtu is something that should be left at 1500 imo.

❤Wow my ping halfed and upload went from 2 or 3mb to 40mb!! 🎉

@NaterTater

Жыл бұрын

Sweet! What was your MTU before and after?

@fatboyeno1234

Жыл бұрын

@@NaterTater peplink router came as 1440 Reduced to 1380 and added 28 as you said, worked a treat

I'm assuming you can't do this on MacOS?

@NaterTater

9 ай бұрын

You can. The best is to update it on a router though so it applies to all the devices.

My max rawter MTU is 1492 which i should set MTU

@NaterTater

Жыл бұрын

Try 1428 for tmobile

@Votrexplays3

Жыл бұрын

Thank you soo much brother❤️❤️❤️❤️🫡

@Votrexplays3

11 ай бұрын

It still high ping brother 😥 tp link archer c6 v4 rawter max MTU 1492 ….😥

Went from getting 100MB/s up to a peak of 6.2 MB/s. Took my 40 gig download time from 4 days down to 4hrs 😂😂 ouch but does seem to be helpful

I've tried just about every online/youtube solution to try lowering the high ping-latency numbers I get from using the latest Tmo 5G black Gateway I purchased recently. Nothing has worked and I play Call of Duty & Battlefield games on my PC but it's just unplayable...unless I wait until 2-3am in the morning! Smh. I've tried using it with a quality Ethernet cable...also tried a million & one different TCP Optimizer settings & all the recommended settings in Windows 10 along with it and my ping/latency will still sky-rocket from 280ms to 480ms. I'm so frustrated trying to game on this effin' Gateway and I'm so close to going out on my deck and giving this pathetic piece of Tmobile shit a nice quick flying lesson & watch it explode upon impact! But before I go all postal on it, I'm going to try the steps in this video & hope for the best while expecting the worse! Just pray for the Gateway...lol

@NaterTater

Жыл бұрын

Just know that exploding gateway will cost you around $400.

@mikemeetstec

Жыл бұрын

Did it work?

@ronnied4385

Жыл бұрын

@@NaterTater Nope...I only paid $75 for it altogether. (First month of Unlimited data was free) So I was very excited seeing it being obliterated to pieces before my own 2 eyes about a month and a half ago. It was worth the money I paid just to see it demolished! Now I have free cable internet (thru a gov. program) and my latency never goes above 25ms. Maybe Tmobile is trying to make another Gateway more online-gamer friendly...but then again? Just don't hold your breath.

@ronnied4385

Жыл бұрын

@@mikemeetstec I didn't even bother trying Naters optimization to see if it would help with my former Tmo Gateway. I'm with Xfinity now and couldn't be happier.

@st4r444

Жыл бұрын

@@ronnied4385 I'm gaming on tmobilr 5g and it's a$$ idk what to do to make it better lol

changing mtu only affects you if you get lost packets on the default mtu. Also it mainly helps when gaming where latency is a big factor.

Mine went from 24-30 ping to 10

@NaterTater

Жыл бұрын

Sweet!

While it will optomize your traffic that doesn't increase the over all speed which is of course based on signal, antenna plaement, This would only increase your speed IF you were pushing 1500 and the carrier wanted 1428.. Then you're causing packets to repeat and and adding latency..

@tmobile please release unlimited home internet on my street. They are literally like 3 streets away with unlimited lol

Wait so you can’t change it on t mobile

@NaterTater

8 ай бұрын

Correct, atleast not with their gateways

@Humbled550

8 ай бұрын

@@NaterTater okay well any tips to get lower ping without changing that

@NaterTater

8 ай бұрын

@@Humbled550 better signal.

@Humbled550

8 ай бұрын

@@NaterTater so I would have to buy a antenna

@NaterTater

8 ай бұрын

Perhaps. Have you exhausted all locations for the gateway?

I think tmobile is just trying to scam with data charges cause connecting to my gateway takes me offline

I guess I’m lucky my ping loaded is 90 to 110 on most days

Internet is terrible always run 100+ ping in gaming it never runs good it’s a scam

@user-ut7bl5hn7w

8 ай бұрын

I have it and my ping always stays at 50-70 it’s fine

@Rmar_

7 ай бұрын

my ping goes to atleast 11 or 4 but here and there it jumps up to like 100 or 500 but it rarely happens

Here's a way to make your T-Mobile home Internet faster... Buy another router... Wow a nothing burger 🍔 thanks

@NaterTater

6 күн бұрын

Happy to help!

Change the MTU size on the T-Mobile gateway not the router, you should see the ping down to 20ms or better.

@tolust

Жыл бұрын

how you do that ? there is no settings on the T-mobile Gateway

@You.Cant.Fix.Stupid

Жыл бұрын

There’s no setting for that on the Nokia. I get 17 to 20ms anyways tho

@sneakypete830

Жыл бұрын

How do you change it on the gateway? The gateways don't allow very much customization out of the box

@zzsdadYY

Жыл бұрын

Is there a script for this?

@You.Cant.Fix.Stupid

Жыл бұрын

Dj don’t no shit

try to type pls

@NaterTater

Жыл бұрын

Sometimes trying your best is not good enough. Turns out its harder than I thought to talk and type at the same time.

Technically, MTU has no impact on speed. All misleading information here 😊

@NaterTater

Жыл бұрын

It certainly can and does impact a users "speed" . We could get technical about what speed means perhaps but the user can experience a slower connection or failed connection with the incorrect MTU setting.

@flyingman358

Жыл бұрын

@@NaterTater the packet size for 1420 or 1500 only represents 5% frames size difference, 0.5% header difference, it is far lower than each speed test difference. There is no way to reflect the real world IP speed differences

@NaterTater

Жыл бұрын

@Super Sun the affect on performance really comes from the results of fragmentation and hardware processing to resize any packets.

You still doing same thing over and over.

@clggauthier

Жыл бұрын

This is very useful information to a lot of people. 🌺

@BudFuddlacker

Жыл бұрын

not at all. This is really valuable information for thousands of people

You talk WAY too much and this video takes WAY too long to get to the pertinent info.

@st4r444

Жыл бұрын

Lmfao white folks do that. Black folks be like "So you open this shiet n type this line and push this key and boom"

This is garbage

has anyone here used this internet with vpn to torrent,, just wondering how much thy monitor downloads?]

hi, can I make these changes on a mac?

@NaterTater

8 ай бұрын

Yes. "On your Mac, open the System Preferences and go to Network. Select your Thunderbolt network adapter and click Advanced... Go t the Hardware category and change the MTU settings." If that doesnt work just google for you le specific Mac OS.

@ivanvelez7668

8 ай бұрын

@@NaterTater ok cause the mac I have is. 2010 mac pro 5,1 running on os mojave. and mine doesn't have thunderbolt adapter listed in the network panel. al I have in there is ethernet, firewire, and wifi. I do have the tmobile 5g home internet box connected directly to the ethernet port on the back of my mac pro 5,1.

@ivanvelez7668

8 ай бұрын

@@NaterTater question, once I go in the the network panel of my mac and change the MTU value, do I do the same in the tmobile router site and change the MTU value as well?

@NaterTater

8 ай бұрын

@@ivanvelez7668 you cant change it on the tmobile gateway

@ivanvelez7668

8 ай бұрын

@@NaterTater yeah I found out I can't do this. what if I add a router like the netgear orbi router. can I go in the orbi site settings and change the MTU value?