Sitting next to two computers. One runs GW2 no problem, can get into the game instantly, no hitches. On the other though...the patcher stalls at 0% - connection error, retrying. Same GW2 install (on detachable harddrive); same connection (LAN). My guess is software problems. My laptop that has problems though has its firewall / antivirus disabled. I even tried booting into safe mode with networking, still the same issue.
Any other guesses?