Interesting observations @H3dius ,
As we can confirm that on consoles this is definitely the same error message players gets, when they are in fact banned on the servers.
It is not always the player gets the message on screen that they cannot join the server because they are banned.
They simply just gets this less helpful error message "Error - Could not join server ( 1 )".
From consoles and analyzing the network data packages, its caused by what appears to be a botched list of active gaming players and the ban list cache (memory or written onto HDD) on the specific server.
Hope that @jsimpson32
Would come back to me in PM, as would be interesting to see if certain work-around also would work on the PC platform.
In console world, it is a deteriorating condition, that slowly but surely brings a server to its knees.
Would be good to confirm if same for PC world, as then we are clear the issue is in EA backbone infrastructure and not actually due to game server end itself.
EA keeps sending us to go to the server hosting entities for them to fix it, while we have so far not seen anything not working there in that end as intended...