MTU for XBOX live mutliplayer gaming on 5g home broadband

[Lexx289]

I am struggling to get my Xbox to work on Xbox live. Doing some googling it seems that the MTU is too low, it is 1360 and should be about 1385 to be able to work properly. I have rung three who seem to have no knowledge of what an MTU is and have sent me to the ombudsman. I have logged into the router (H122-373) and increased the MTU manually however it will not pull through onto my XBOX. I have put it in the DMZ, enabled UPNP and generally faffed with it as much as i can but the MTU on the XBOX does not change. I am assuming this is what is being sent from three and so it is something to be changed at three's end...

Does anyone else have any experience of this, or have any issues with XBOX live and home broadband 5g? or can they get it to work, cheers

[JonathanB]

Hi everyone,

I've merged the three different threads about this issue so that any updates can be clearer. It's best not to create new threads if an existing one clearly describes the same issue.

Just to confirm, the MTU is 1500 for the Three network, however from what I can gather, 4/5G Broadband may register as a lower MTU by the Xbox's operating system. There are quite a few examples of this being reported in other online communities for a number of service providers, both in the UK, and overseas too, and spread out over a number of years too, so it doesn't actually appear to be a new issue. 

We've had reports of this issue on the Zyxel, ZTE, and our older Huawei routers, so no particular model seems to be overall responsible for the issue, however, using differing hardware may have an impact on the signal reception and quality of connection in a location.

I'm continuing to pass feedback on about the issue, and I'll let you all know if we have any further advice, or find a solution. I'd suggest raising feedback with Xbox Live support directly too, from what I've read in the comments, most users running into this issue aren't actually having issues with speeds or connections on other devices, so it is possible that this is being caused by a software issue on the consoles.

Thanks,
Jonathan

[Kapkando]

hi Jonathan I've recently signed up too three 5g home broadband and I'm having this exact issue with the mtu 1360 on my xbox series x I'm wired with the router NR5103EV2 .even tho my speeds are great and lentecy too it keep saying there's a mtu error because 1360 is below the required amount for xbox services from what I read .I'm not actually having any issue I don't think .I'm playing games and sometimes there's some lag on warzone call of duty but I don't know if that's just coincidence .so anyway I just wanted to ask if anyone has learned anymore on this matter with the mtu I'm not sure if I should cancel or just go with it because I'm not having any issue.many thanks

[Cerberus73]

Yeah the MTU packet size games want is large now and more importantly larger than what is given via Three still which is very frustrating. Try and get games like Forza Horizon 5 or Motorsport going and it’s problematic. Do a multiplayer test and yup it’ll fail it, just not getting what it needs. 
Lag can be grim at times and the network is slower now compared to than what it used to be looking at my old Speedtest.net results it’s half. 

[MrSimo98]

Thank you for your response Jonathan, I appreciate your ongoing support in this matter. I have just came of the phone with Xbox, after nemours transfers to different departments we are still none of the wiser. I was advised all of the basics that you would expect. Clear Xbox mac address, hard reboot console, unplug power, restart router, contact ISP. It took me a good while to get hold of somebody who somewhat understood what a MTU was. Sadly, we are no closer on fixing this. 😞

[JonathanB]

Thanks for trying this @MrSimo98.

I appreciate the wait on this one has been frustrating, so I've done some tests on my own series X just now and can confirm it's not an issue on the network as a whole.

MTU showing on Xbox was 1480 when using a hotspot 5G connection, with a Three data SIM. I was hoping to replicate the problem to be honest, but there must be other variables involved.

Can anyone confirm if the issue persists when the router SIM is popped into a phone and used as a hotspot? This may help us narrow down what's causing this.

Thanks,
Jonathan

[hhlondon97]

Hi Jonathan, any update on the situation? As you can see it is affecting even more people!

[SilentBird1526]

I have been having this issue for over 6 weeks. MTU size does not change and also when you enable UPnP it doesn't actually do anything and it will not make use of IPV6 either. I am loosing access to most online Xbox games, it gets worse every week. We need a different capable router sending out.  Last night it struggled with youtube. 

[Anvil_Iron]

Hi Jonathan, Maybe the next step is to borrow a router or two or more different types and connect to your own Xbox? This would highlight issues with the router if the problem arises.

[MrSimo98]

I have just tried a similar test using a hotspot, I am not using the three network for this and sadly it's only 4G suppose to 5G which in this instance is probably good for the test. Upon testing my hotspot I too get an MTU of 1480. 

What I have noticed differently connecting to my phones hotspot supposed to the Three 5G router both wireless and wired is when I go to the Xbox Settings - General - Network settings - Over to the right hand side under "Current Network Status" the Xbox is connecting to both IPv4 and IPv6 using my phones hotspot. Once connected to the router IPv6 disappears. If I go into the Advanced Settings on the Network tab on the Xbox it tells me that the Port connected is using Ipv4. Read about using IPv6. 

This might be a long shot, but this is the only difference I can notice.  

[jamestaylor9999]

 

 

Hi, I keep getting MTU errors on my xbox one. I’ve tired everything from changing setting on router and phoning three but they don’t seem to know what I’m talking about. 

The minimum requirements for the xbox MTU is 1384 but I can only seem to get 1360. I’ve added some pictures. MTU Xbox Live - 5G Home Broadband