Replace the lservrc file in the License Manager installation folder (not the ETABS program folder) on the server.
He restarted the Sentinel RMS License Manager service. He watched the progress bar crawl, then disappear. He clicked the ETABS icon again. The splash screen teased him with a shimmering building graphic before the gray box returned like a recurring nightmare. license not recognized error 30 etabs 2016
If you are working in an office environment that utilizes a network/floating license, the issue might lie with the server hosting the license, not your local machine. Contact your IT administrator or CAD manager. Replace the lservrc file in the License Manager
If the above fails, the License Manager itself may be corrupted. license not recognized error 30 etabs 2016