Network License Server Connectivity Issues

This article describes how to troubleshoot situations when the software is unable to connect to the Network License Server.

If the software is unable to connect to the Network License Server and you are receiving the above error message, this may be caused by the following:

1. The computer on which the Network License Server is installed is not running.
2. The Network License Server is not running.
3. There is a network connectivity issue.
4. There is a firewall issue.

To fix this problem, try the following options:

1. Click on the [Try Again] button.
   
2. Check that the computer on which the Network License Server is installed is running.
3. Check that the Network License Server is running. Refer to this article in our knowledge base to learn how to verify the Network License Server status.
4. Make certain that the computer on which the Network License Server is installed has a static IP address. Refer to this article in our knowledge base to learn how to set a static IP address.
5. Ping the computer that the Network License Server is installed on (see the section below).

How to Ping the Network License Server

The Ping command can be used to check the network connection to another computer, such as the computer on which the Network License Server is installed. The following video demonstrates how to use the Ping command.

Follow these steps to ping the Network License Server:

1. Display the Windows Run dialog box by pressing the Win + R keys (the Windows key and the “R” key at the same time) on the keyboard. This will display the Windows Run dialog box.
2. Type Ping X and replace "X" with the actual static IP address of the computer on which the Network License Server is installed. For example, if you wanted to ping the IP address 10.91.4.156, you would type Ping 10.91.4.156.
   
3. Check the response from the Ping command to make certain that the computer is responding properly.

Checking the Health Status of the Network License Server

The user can verify that the Network License Server is running and actively accepting connections by using the health check URL directly in a web browser. This URL returns a simple status response when the license server is running correctly.

The health check URL uses one of the following formats:

Replace ip_address with the static IP address of the host computer and replace port_number with the port on which the license server is running. Refer to this article in our knowledge base to learn how to find the IP address and port number on which the Network License Server is running.

Examples:

To use the health check, open a web browser on either the host computer or a client computer and enter the appropriate URL into the browser address bar. If the license server is running and reachable, the browser will display a short status response confirming that the server is healthy, as shown below.

The health check response displays the following information:

• The provider name of the license server.
• The port number on which the license server is currently listening.
• The version number of the installed Network License Server software.
• The machine ID of the host computer on which the license server is installed.
• The status of the license server. A value of Success confirms that the server is healthy and available.

If the health check status is Success but the connection issue still occurs, this may indicate a firewall issue. Refer to this article in our knowledge base on how to check the firewall connectivity issue.

If the page does not load or returns an error, the license server process may not be running, or the license server may not be accessible using the specified IP address and port number.

Further Troubleshooting Help

If you continue to encounter issues, refer to this article in our knowledge base. It has additional items you can do to troubleshoot the Network License Server.

If you continue to have issues, contact our technical support. Our technical support engineers will be glad to assist you further.