This will likely be connected to changes the DevOps team's been making to try and protect FAF from the ongoing DDOS attacks - the announcements section of discord is probably the best place for updates on this for now:
https://discord.com/channels/197033481883222026/197078254681587712
Connection issue update #7
Unfortunately todays update contained some older ICE adapter refactoring that was pending for release and causes other problems now. We are working on a solution.