Customer cannot use his activated licenses because the Network License Manager is showing the following message at the bottom.
Cannot connect to License Server. Please check your network set up
On the Mac OS X platform, the Network License Manager may expose this status message as displayed below.
On the Mac OS X platform, the License Server must be started manually. On the Windows platform, the License server is running as a service and is launched automatically at boot time.
Network License Manager on Mac Systems
On Windows, you can restart the FLEXlm License Manager via Start > Programs > Esko > System Controller > Tools > License Server Administration > LM Service Administration-tab > Start the FLEXlm License manager service
what if there is only network license manager folder ,no system controller?
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