Applies to PRTG Network Monitor version 7.x

Solving Connection Refused Socket Error # 10061 in Windows GUI

The Windows GUI is a native Windows application and one of the interfaces that you can use to change settings and review monitoring data of your PRTG setup. In order to retrieve this data, the Windows GUI must establish a connection to the PRTG Web Server.

If you open the PRTG Windows GUI and see a "socket error number 10061", this means that your Windows GUI was not able to connect to the PRTG Web Server running on the PRTG Core Server. There can be several reasons for this. If you can still log into the PRTG Web Interface but get this error message using the Windows GUI, the most common matter is non-matching settings of Web Server and Windows GUI.

Step 1: Viewing the Windows GUI Settings

• From the Windows Start Menu, open the "PRTG Windows GUI" program.
• From the menu, select "File | Options & Server Settings...". The "Options" window appears.
• On the left side, click on "PRTG Server Connection".
• On the right side, select a server entry and click on "Edit". You now see the settings the Windows GUI uses to connect to the PRTG Web Server.

Step 2: Viewing the PRTG Server Administrator Settings

• From the Windows Start Menu, open the "PRTG Server Administrator". Note: You must open the Server Administrator program on the machine that is running your PRTG Core Server!
• In the "Web Server" tab, you can view the "Web Server IPs" that are allowed to establish a connection to the Web Server. The "Web Server Port" is set there, too.
• In the "Administrator" tab, you can set the user name and password that are used to log into the interface.

Step 3: Compare Settings

Please make sure that both the settings of Windows GUI and Server Administrator match.

The values in the following screenshots are for illustration purposes only. Your own settings will vary. You can also use "localhost" instead of an IP address in both the Windows GUI and Server Administrator (if Core Server and Windows GUI are running on the same computer).

Screenshot of PRTG Windows GUI (click to enlarge)

Screenshot of PRTG Server Administrator (click to enlarge)

Step 4: Apply Changes

Change settings according to the table above. In both Server Administrator and Windows GUI, confirm the settings with "OK". When applying changes to the Server Administrator, PRTG Windows Services must be restarted so the changes take effect. You should now be able to connect with the Windows GUI.

More

If you still cannot connect to the Windows GUI, please check the following:

• Make sure a local software firewall does not block the connection.
• Make sure a local virus protection program does not block the connection.
• Make sure that the port is not already used by another application. Please see How can I list all open TCP ports and their associated applications?
• When you're connecting to the PRTG Core through a network (either LAN or WAN), make sure a (hardware) firewall does not block the connection.