All you can do is wait and hope that it will be resolved soon. You can always check the official Overwatch Twitter account for updates, as they usually notify players if anything significant occurs on their end. We have mentioned ways below to Fix Unexpected Server Error Overwatch 2
Ways to Fix Unexpected Server Error Overwatch 2
Update Network Drivers
Restart your internet connection
Final Words
Overwatch 2 was released on October 4th, and many players were met with the Unexpected Server Error in Overwatch. The servers are currently under attack from a DDoS (Denial of Service) attack, and Blizzard Entertainment is working to resolve the problem. The problem also exists in World of Warcraft and Diablo, and the publisher has not stated when the problems will be resolved.