Error Code: 42:0:9001:4131

#1 - Sept. 5, 2013, 6:37 a.m.
Blizzard Post

This happens to me once a week where for one whole day I can not login because of this error. I do not understand where the problem stems from as I have contacted my isp and turned off my firewall, but I still can not login.

#2 - Sept. 5, 2013, 2:24 p.m.
Blizzard Post

I’d like for you to try launching the client a bit differently. The instructions below will change the way Guild Wars 2 connects on your network. In short, this will force all data inbound and outbound to use port 80. Since port 80 is a very common port, it usually has the least amount of issues with transmission of data. To do this:

1. Locate the file “GW2.exe” and right-click it, selecting “Create Shortcut.”
2. Rename this shortcut to “Guild Wars 2 Port Test.”
3. Right-click on this shortcut and select “Properties.”

4. Edit the “Target” line to include /clientport 80 at the end.

Note: Please make sure /clientport 80 is outside of the quotes

Correctly Formatted Example: “C:\Games\Guild Wars 2\GW2.exe” /clientport 80
Incorrectly Formatted Example: “C:\Games\Guild Wars 2\GW2.exe /clientport 80”

5. Once completed, click “Ok” to save your changes.

If you get an error trying to save, your target line may not have the correct format. Please try step 4 again.

6. Double click “Guild Wars 2 Port Test” and try connecting again.

Please let me know if this has any affect on the issue.