**#@IC_HTML@# indicates that the license server is unreachable. What could be the reasons?** 1) Make sure that the license server details (host and port) are correct. 2) Make sure that there is an active network connection to the license server. 3) Make sure that no firewall prevents communication with the license server. If necessary, configure the firewall on the server so that "LicenseServer.exe" is allowed to use the input port "6781". **See** Installation > Set up multi-user license > [[en:infra-convert:user:installation:licfloat#port_enable_license_service|enable port for license service]] 3) Uninstall #@IC_HTML@# and then reinstall it. **See** Installation > [[en:infra-convert:user:installation:uninstall|Uninstallation]]