I've recently started playing again after about a month long break. During the last 2 days I've had to quite and restart the client because while I'm playing I can move around, chat, and sheathe and unsheathe my weapon but that is it. I can't attack or crouch or even use ESC to exit the game, I have to use ALT+f4.
It's not being caused by a specific action, as far as I can tell. The first time I had just finished a fight. The second time the game had been loaded for about 10 min before this happened and all I was doing was standing and chatting. And the third was about 2 min after it loaded from the second time. The fourth immediately followed the third after the restart.
Any ideas?