"The game client is unable to gain access to the log-in server at this time. This is most commonly caused by firewall or router settings, security applications, or connecting through a campus network. For additional support, please visit http://support.guildwars2.com."
What is an Error 42?
Error 42 indicates an interruption in your connection to the game's account servers, which handle everything from login to numerous social systems in the game, including guilds and chat. The error can occur both before and after you've already logged into the game, preventing you from logging in or disrupting your access to certain systems if you're logged-in when problems arise.
On the client-side, the error is most often caused when a network problem disrupts your connection to the account servers. On the server-side, the error can be caused when the servers themselves are experiencing network issues.
How do I fix an Error 42?
Network issues on the server-side are often resolved within a few minutes. If this is not the case, here are a few steps you can take to troubleshoot the issue:
Completely exit the game and close the client. Wait five minutes, then re-launch the game and try again.
Reboot your PC. Giving your computer a chance to reset and reboot can help address numerous issues that might impact your connectivity to the game.
Reset your router and modem. Rebooting your modem can fix connection problems, improve slow connections, and clear out any issues stored in the memory of your router.
Temporarily disable any security software such as Norton, AVAST, AVG, or McAfee, and then re-launch the game.
If these basic steps do not help, try these more advanced troubleshooting steps:
If this does not work, adjust the 'security' setting within your firewall settings. Lowering this setting to 'medium' or 'low' will often clear up connection issues.
Guild Wars 2 requires TCP ports 80, 443, and 6112 to be fully unrestricted and accessible—both inbound and outbound. You can learn more about how to configure your firewall and router ports in this article.
Please note that more severe network outages may take longer to resolve; if this is the case, be sure to watch our social channels for the latest updates as we work to resolve the issues.
While there are a large number of Error 42 codes you might receive, most can be boiled down to the same root cause. Here's a list of Error 42 variants you might encounter while playing Guild Wars 2: