Over the past week I have been constantly getting this error message or variations of 277 in game and getting disconnected. On average it happens 10-20 minutes after joining, making games with longer play-sessions almost unplayable. It happened abruptly with zero signs before before.
I have good internet with 90 average MBPS, and there are no ping/gameplay issues aside from being disconnected.
I have tried reinstalling roblox, restarting my wifi and router and restarting my devices. It happens on every device I have and has not been getting better.