An error has occurred and you are no longer in sync with the game session

[xPsychonaut4]

Sadly even lowering the threads didn't fix the problem for me at all either, using two Intel Xeon E5-2687W v2 CPUs. Had no problems in previous FIFAs at all, but 21 online is pretty much unplayable for me because of that, as it happens in FUT and even online seasons too.

[WolfieAD]

Still having the same issue in nearly every game I play for the past week

[Legioninho]

"an error has occurred, and you are no longer synced with the online game"
This error start happens for me right after I ypgrade me PC. From Intel 7700K to Ryzen 5900X. Tested back on Intel cpu and no error...
@EA_Cade 

Fix it please.

[MikeyYakson]

@Legioninho I have the same problem in pro clubs only. Literally cannot even get further than div 8 because almost ever game I am getting the "You are no longer synced to the online match errror". What an absolute joke! Needs to be fixed ASAP. I have tried everything, limiting the number of threads on my CPU etc. Nothing fixes it. Get your act together EA and fix it!

[Stolle289]

I have the same issue. 

Still at November 2020.

I hope the support will fix this bug. 

[RealTrumpyDonald]

I am getting this disconnect on Pro Clubs, also FUT... 

I have an 3900xt and have tried lowering the thread count as mentioned, which didn't seem to work (although I didn't relaunch game after trying...) - have formatted windows, also changed graphics card to a 3070... (Gigabyte Aorus motherboard, 64GB memory)

I don't have this problem on the same network with intel i9 laptop... so think it's some sort of issue with EA/hardware...

[LeLichter]

I also have this issue and I have a Ryzen 9 3900X, please fix this EA, it's really annoying to get kicked of a game randomly for no reason.

Especially in Pro Clubs when you're forcing everyone to quit because you've been kicked in the first minutes of the match.