A previously working EM now fails with the error, "No valid license files were found" in the log. The license is found to be still valid.
When changing the log details level to "VERBOSE" or "DEBUG", entries similar to the following are seen:
1/1/15 01:10:01.001 PM EDT [INFO] [main] [Manager] Starting Introscope Enterprise Manager...
1/1/15 01:10:01.002 PM EDT [VERBOSE] [main] [Manager] Checking license file: /opt/wilyem/Introscope95/./license/220.127.116.11.em.lic
1/1/15 01:10:01.003 PM EDT [VERBOSE] [main] [Manager] Validating license now: /opt/wilyem/Introscope95/./license/18.104.22.168.em.lic
1/1/15 01:10:01.004 PM EDT [DEBUG] [main] [Manager] Host id error
java.net.UnknownHostException: myEMhostName: myEMhostName
at java.net.InetAddress.getLocalHost(Unknown Source)