by Pottu » Mon Feb 22, 2016 6:37 pm
Try this:
1) Leave all chat channels by typing /leave channelname
2) Close your client while you're in a capital city
3) Go inside the WTF folder and find the chat cache file for your character - delete it
4) Relog back to the game. You should now automatically rejoin General, Trade and LocalDefense and you can join any custom channels you use.
Doing that should ensure that your channels work properly.
The GM team.