Problem "you have disconnected from the network", constant message

Hello, I bought the Age for PC by Steam, but playing online after a while takes me out of the game, update the video drivers, opened the corresponding ports of the firewall, I created an account on Xbox Live, try the antivirus on pause but I keep doing the same, I clarify, it is not a problem of my internet connection, please someone help me!

ejemplo

Is there a technical support forum or something? I have been waiting for you to help me for almost a month!

Thank you very much for responding and passing me that link, search the forum and I did not see it, that is the problem I have, but sometimes it takes more than 5 minutes to disconnect, I almost never reach the age of castles