Cannot AA or use Skills Bug
log out to character screen and relog, if that doesn’t work try completely logging out or exitig to desktop and trying again. I was still able to use skills 7-0 but not weapon skills when it last happened to me. Usually when it happens I can’t even use those and it means I am about to disconnect, as my router/AP fails almost if not always at least once a day.
The first step to troubleshooting anything that involves something not working try re-logging, that usually fixes most problems.