Also having this problem for the last 2 days, re-installed twice and tried every solution I could find over the last 2 days of googling. Also wrote a support ticket, though I have not gotten a solution yet from said support ticket. Maybe it is the servers…
EDIT- Added my “Guild Wars 2 Test.txt” and found I am losing 100% at “G0-9-1-7.PHLAPA-LCR-21.verizon-gni.net [130.81.97.50]”… not quite sure what to do to fix that…