“No License Available after deactivate and reinstall the software” – TEKLYNX CENTRAL Error Message
Summary
This Error Message Article explains the TEKLYNX CENTRAL error message “Access is denied. UMSS: No license available.” and details how to fix the underlying problem that caused it to appear.
Explanation
The most likely source of the error message is that the license is not activated (after deactivated).
Solution
In TEKLYNX CENTRAL, user can activate the license by using the TEKLYNX CENTRAL Command Center

Additional Comments
Related Articles:
KBA-01701-Q3S6T2 – In-place upgrade TEKLYNX CENTRAL 4.0 to 4.5
KBA-01810-P0M5V1 – Manually activate license for Teklynx Central 4.5