MTU error on 5g broadband with Xbox

[Ocook]

I’ve seen a few posts about MTU errors on Xbox when using three 5g broadband but has anyone got a solution for this yet? The MTU showing on my Xbox is 1360 but when I look into the router settings, the MTU is 1500. 
Thanks

[Mouse81]

Started having same issue last week also, was fine for first few months then, the MTU and speed drop issue started, changed hubs and SIM card with no effect. all from 3 is the network is fine in your area, well the network may work but there is clearly an issue on the service.

[Kapkando]

I'm having this exact same issue router says 1500 mtu xbox series x says 1360 I've been looking online for about a week with no answers or solutions I'm able to play games and speed is good so I dunno weather to ignore it and carry on .or cancel my contract before the cooling period ends if you hear anything @Ocook could you let me know .thanks. I've seen @JonathanB in alot of posts about this issue maybe he will reply. Fingers crossed