But if you’re using a newer router that supports UPnP, all you need to do is enable this option in the Settings menu. If you’re using an older router, you might need to forward the ports used by Overwatch manually in order to fix the problem. However, chances are you might actually be dealing with a NAT (Network address translation) issue instead. In case your investigations reveal that the problem is only restricted to your current configuration, your first troubleshooting attempt should be to either restart or reset your router in order to clear any TCP / IP inconsistency that might facilitate this error.