Im playing from Belarus. It started yesterday. At first I was kicked out of the game. I tried to re-enter but when I clicked the reconnect button it was simply disabled. Then when searching for a game it said that it found the game but then it said that the connection failed. I rebooted the modem but again got the same problem. I saw how players who connected wrote in the chat but I was not connected to the game. Now there is a ban for 8 hours.
It works using the VPN. Looks like the Belarus’s IPs has been bunned.
Blizzard no longer* makes their game IPs public. You could look up the Google datacenter IP for the server you’re normally connecting to and ping that.