Error Code: 42:0:9001:3927

#4 - Sept. 11, 2012, 11:10 a.m.

I’m sorry to hear you guys are experiencing this issue but I would like for you to try a command in order to resolve this issue. To do this:

1. Navigate to your Guild Wars 2 installation folder.

2. Right-click on “GW2.exe” and select “Create Shortcut.”

3. Rename this shortcut to “Guild Wars 2 Port Test.”

4. Right-click on this shortcut and select “Properties.”

5. 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”

6. 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 5 again.

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

#7 - Sept. 11, 2012, 12:17 p.m.

Hey guys – Error code 42 can mean a couple of things – it can mean there is an issue with the ports, an issue with your router, security software, or simply that the servers are down. This has even been found to be an account based issue in certain situations.

Unfortunately this will vary from player to player depending on when exactly this error message is being experienced and I apologize for any frustration that may have been caused by this issue.

Part of our job in Technical Support is getting to the bottom of why you are experiencing an issue and looking to resolve it and so this will involve some troubleshooting.

That being said, I would also recommend perhaps flushing your DNS and doing a Winsock reset if this has not been tried already.