I’m play GW2 64 bit on Windows 10 and the -repair & -diag target commands do not work. Dunno if its a 64 bit thing.
I had the same login issues earlier but I can get into the game without a repair now, BUT I keep getting disconnect errors after just a few minutes of playing. And when I log back I find that everything I did, like running from Ebonhawke to just before the Blazeridge Steps entrance and all the WPs I grabbed in between, were undone…as if the server received no data from my character, despite the map opening, monsters dying, skills firing and WP animations playing as I grab them.