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

[JMiquel]

I recently have come across this same issue, where I cannot access online games or connect to multiplayer because my MTU is too low. Strangely, I had the older Three 5g hub for over a year prior to being told to switch to the new ZTE hubs, and I had 0 problems. Even with this new ZTE hub, I had no problems for about 6 months, but then all of a sudden over the past 2 weeks, I cannot connect to multiplayer games, with the problem being too low MTU. I'm guessing by reading all the previous messages that there isn't really any way to fix this, so definitely looking to change the hub, which is a shame. 

If a solution is found, would love to hear about it!

[Kal]

Update: We have found that connecting a Nintendo Switch also flags up a problem with the internet connection on some games.  It seems to be the MTU issue.

Interestingly, when connecting it to a wifi hotspot on an iPhone with the Smarty network (which is a MVNO sitting on Three, owned by Three as I understand) then it will work.  But through the Zyxel NR5103E it will not work.

Anyone got any news about this?

[ZaneMD11]

So having a Switch connected to the network affects the MTU? I’m having the same issues with Xbox as you all and also have a Switch on the network. 

[KateS]

Hey @Kal,

FYI : IPv6 Prevented VPN Connection This article contains some information that may help you. I'd suggest trying setting up a manual APN profile for 3internet set to IPV4 only. Some other users have found this helpful with issues relating to games consoles and other devices. 

Let me know how you get on.

Thanks,
Kate

[Swiz051]

Yep I have the exact same problem nightmare 

customer service are all foreign n don’t under stand wat ya are talking about either pure joke 

[Jack2]

Everything works for me except party chat for some reason.

[Mazdan]

Yea I’m having the same MUT problem why don’t you stop blaming the customers devices and fix your broadband 

[robertyork2001]

I'm getting the same MTU problem and can not use Xbox party chat at all I have tired two different WiFi boxes from three nr5103e and nr5103ev2 plus hotspot from my 5g three mobile this has been going on for almost 2 months now and I'm about ready to cancel my three broadband if this isn't fixed soon 

[Kal]

Did you find a solution?  I am with the same Zyxel NR5103 box (got 2 of them and both the same).  Neither work with the Xbox because of some MTU issue.

Strangely, connecting the Xbox to a wifi hotspot on my Android phone (also on the three network - well, ID Mobile - does not experience this problem.

[craig60022]

There is no mtu connection with three 4g home service I cam still play online games bur do get some issues I never used to to say they are not aware of this is total rubbish this setting was not an issue untill a couple of months ago