NI License Manager Slow or Not Responsive when Adding Network Server

Updated Oct 9, 2019

Reported In


  • NI License Manager
  • Volume License Manager

Issue Details

I have NI software installed on my system. I have a license server which is on another domain. The correct information (server name and port) has been configured through a Volume License Installer or in NI License Manager. However, NI License Manager is extremely slow to respond or appears frozen.


In order to resolve the issue, you need to add the server's domain to the DNS suffix list under TCP/IP advanced properties.
  1. Go to Control Panel » Network Connections.
  2. Select the Internet Protocol (TCP/IP) under the connections list, and click the Properties button.
  3. Click the Advanced button at the bottom of the General tab.
  4. Select the DNS tab. Select the Append these DNS suffixes radio button if not already selected, and add the DNS suffix using the Add button.  Here is an example dialog with a dns suffix added: 

Additional Information

This issue is a known bug with the MacroVision FLEXlm software used in our licensing technologies.