If you open your PG/PC ALM and navigate to your license server in the "Management" view's tree, does your required V19 Portal license show up as available for check-out?  Or, are you required to transfer the license to your PG/PC for use and the transfer back to the server after use?

Screenshot of your ALM screen showing your license server added to the search tree would be very useful.

Refer to my posted screenshot for reference.

Mr_Prof

My license is on a server - still I'm facing the same issue. What can be done?

ALM updated. V19 Tia portal

Thanks.  That means if the license server is configured to allow license check-out - AND - the local license manager settings for the license server is set to allow searching and stay added to the ALM, you can use that license server - provided a license exists and is not currently in use by someone else.