Unable To Obtain License 5677 . License Request For -

The license file on the server (usually a .lic or .dat file) was generated for an older version of the software. When you update your client software, the request format changes, but the server still expects the old format.

Disabled my firewall/antivirus temporarily to see if they were blocking the request. Restarted the FlexNet/Sentinel services. Unable To Obtain License 5677 . License Request For

This solves 70% of 5677 errors on client machines. The license file on the server (usually a

: On Windows machines with User Account Control (UAC) enabled, ensure you run product registration or installation tools explicitly as an Administrator . the request format changes

# Check if license server is reachable on the expected port (e.g., 27000-27009) telnet <license_server_host> 27000 # Use lmreread or lmstat to view license usage lmstat -a -c <port>@<server>