Matchmaking

I have attempted to enter the ranked matchmaking system several times. However, when the Accept and Decline options do not pop up and I am sent back to the match-making set up several times. I received a warning that failing to Accept when a match is found can result in a ban.

I have attempted to resolve the issue by restarting the client. However, the same issue occurs.

I would be most grateful with your assistance in this matter.