I disconnected tonight and died, after I'd logged back in and ressed I could not cast spells or attack with my wand and was getting the warning that my character was moving, but on my screen I wasn't. I could still cast all healing spells on myself though, just no damaging spells on enemy mobs.
I relogged to try and fix the problem, now the game was struggling to load in NPCs and I could now not attack anything, I was apparantly 'Out of Range'. No matter where I moved to, including standing right on top of mobs, I couldn't attack due to being 'Out of Range'.
Have relogged a few times, leaving my character offline for a while to see if it will fix itself but nothing so far. This issue is only with NPCs, I can heal and buff other players and myself still.