To resolve the "Horizon Connection Server license key is invalid" error, follow these step-by-step instructions:
: Using a Horizon 7 license key in Horizon 8 (2006 or newer) will result in an invalid key error.
: Check the Horizon log files located at :\ProgramData\Omnissa\Horizon\logs for specific license-related ERROR entries. horizon connection server license key is invalid
⚠️ WARNING: Modifying the ADAM database incorrectly can permanently damage your Horizon configuration. Take a snapshot of your Connection Server VM before proceeding. Log into the Connection Server as a Horizon Administrator. Open the Start menu, type adsiedit.msc , and press .
Horizon Connection Servers rely heavily on accurate timekeeping for certificate and license validation. To resolve the "Horizon Connection Server license key
Verify that the system time, date, and time zone match your Active Directory Domain Controllers.
: Using a license key from an older version (e.g., Horizon 7.x) on a newer version (e.g., Horizon 8/2312+) without converting it through the Omnissa Customer Connect portal Omnissa Transition Requirements Take a snapshot of your Connection Server VM
If you are using an evaluation key, ensure it hasn't expired. An expired eval key will often trigger an "invalid" or "expired" error immediately upon entry. 4. Time and Sync Issues
Check the system time against an official NTP source or your Active Directory Domain Controller.
The "Horizon Connection Server license key is invalid" error can occur due to several reasons, including: