Unable to Connect to Server.

Quemapueblos: Hi Sarge, we might be able to help you a bit quicker if you can send in a support ticket and get the folks who really know they are talking about but here are my few suggestions to check as a non support guy: Check if you are running the Exe in admin mode Check if your firewall and anti-virus setting changed and add both WorldOfTanks.exe and WOTLauncher.exe Check Router settings - maybe some settings in your router was reset or changes You may have to open some ports in order for the games to properly function  All destination UDP ports: 20013, 20014, 20018, 32801-32825 TCP game ports: 80, 443, 1080, 3128, 8080, 8081, 8088, 8888, 53, 20000-25000, 32801, and 32803 UDP voice chat ports: 12000-29999, 5060, 5062, 3478, 3479 Run ping plotter to see where the connect is failing   There is a support article on the topic that has more details. If those don't work I'd recommend contacting support directly.