Connection Troubleshooting

License Manager requires internet access to communicate with the Prokon License Server. Various external factors can interfere with communication.

Check-list for connectivity problems

Verify basic Internet connectivity: Check if your email works. Check if you able to use your web browser to view major websites such as Google and Microsoft.
Check your firewall: If you are on a corporate network, then your network firewall may have a restrictive setting that is preventing License Manager from using the Internet. Check with your IT administrator to allow License Manager access to the internet. See below for more information.
Check your anti-virus software: Some anti-virus packages include firewall capabilities. Temporarily set it allow all connections, and try again. If that seems to solve the problem, then you will need to configure your firewall to allow License Manager to make connections. See below for more information.
Check your proxy server: If you are on a corporate network, then your internet connection may work through a proxy server. License Manager will attempt to detect your proxy server settings. See below for more information.

Tip: Use the connection troubleshooter to perform a battery of connection tests and view tips on correcting connection problems.

Firewall configuration

License Manager uses the HTTPS protocol on port 443 to communicate with the Prokon License Server. This is the same protocol and port used by secure Internet websites.

Your firewall must allow outgoing TCP connections on port 443 to *.prokon.com. As an alternative, list \Prokon\Bin\LicenseManager.exe as an exception in your firewall.

Proxy server configuration

License Manager uses the system proxy server configuration by default. You can override this setting by entering a proxy server or selecting to use a direct connection on the settings tab.

When using the system proxy server configuration, the following discovery sequence applies:

WinHttp configuration:
1. The proxy server is manually configured using the Netsh command.
2. Web Proxy Auto Detect (WPAD) settings are configured in the Domain Name System (DNS) options or the Dynamic Host Configuration Protocol (DHCP) options.
The NetHTTP settings made on Connections tab of the Internet Options applet in Windows Control Panel:
1. The "Automatically detect settings" check box is selected, suggesting Web Proxy Auto Detect (WPAD).
2. The "Use automatic configuration script" check box is selected.
3. A proxy server is entered.
Failing discovery of a proxy server, a direct connection is used.

License Manager performs the proxy server discovery on start-up (unless you have entered a proxy server or selected to use a direct connection). If the initial connection to the license server fails via the discovered proxy server, License Manager automatically retries the connection one more time using a direct connection. If the direct connection succeeds, then the program continues to use a direct connection for the remainder of the session.

Connection Troubleshooting

Check-list for connectivity problems

Firewall configuration

Proxy server configuration

More information