Hi guys, I wanted to ask you about this problem I have.

I used to play WOW on PC at my work (cant instal anything here, but you can copy WOW folder from home PC and play). But lately I cant log on any server - it always freezes at "Authenticating" phase. I tried different clients on different servers (TBC, Wotlk, Cata, MOP..), but only one that works is Legion for some reason.

Does anyone know how to solve this problem?

Thank you for answers :)