Some players have told us that in the last week, they’ve started having trouble with the client download, or with updates.
Here’s what we posted in another thread:
Background: FIOS has been presenting issues with GW2 for a little over a week now. After collecting a decent amount of data we feel this is going to be a DNS issue on Verizon’s side as players connections are not resolving when hitting the server while on FIOS but can usually resolve when using GoogleDNS or Host file edits.
Suggestion: We suggest that players contact FIOS for help. We have sent an e-mail to FIOS already and we have contacted Verizon but at this time we are still awaiting their responses.
A Work-Around Suggestions from our Server Team: Set your DNS provider to Google (https://developers.google.com/speed/public-dns/docs/using) as that fixes this problem and will continue working into the future.
Thank you for understanding and we wish we could help more directly!