Just posting this here in case anyone has ever come across this issue when using the X20s. I've posted on Reddit and at least 3 people have said they have the same issue so trying to spread awareness in hope of a fix.

When looking for a match in Ultimate Team in both FC24 & 25 the game would freeze for a few seconds before displaying the message 'the connection to your opponent has been lost' before kickoff or a few seconds after. Occasionally l'd just get a black screen which would give me a loss as l'd have to close the application. At times it would take me 5+ attempts just to get into a working match.

Some time before FC24 released I changed my router to 2 X20 decos. Initially I was adamant that it was an issue with the game as it was the only game that had an issue, but after trying to change every setting, FC25 being released with the same issue, I tested playing with an Amazon Eero 6, and the issue has completely gone.

Wondered if anyone else plays with the same setup and experiences this issue. Only other issue I had is casting from my phone to tv using Airplay and Chromecast. The majority of the time my phone would find the TV but be unable to connect