Follow these procedures in order to isolate and resolve the issue. Step 1: Clean the License String
Avoiding the "invalid license" error in the future requires proactive management.
The old license worked yesterday. After upgrade, it says "invalid." Cause: Horizon 8 dropped support for perpetual licenses that lack "Subscription SKU" metadata. Solution: You must log into Customer Connect and generate a new license key for Horizon 8. Even if you had active SnS (Support & Subscription), the key string changes. Do not re-use the Horizon 7 key.
It sounds simple, but the Horizon Admin UI is picky. Hidden characters or trailing spaces from a PDF or email can trigger an invalidation. horizon connection server license key is invalid
Prevent future licensing lockout issues by implementing proactive management habits.
If replication errors appear, restart the service on all nodes to force a sync. Step 5: Advanced Fix via ADSI Edit (When UI is Locked Out)
With the shift to a subscription-based model and the end of perpetual licenses, it's more critical than ever to understand your organization's licensing. Proactive management is the key to a stable and compliant Horizon environment. Follow these procedures in order to isolate and
VMware Horizon relies on a valid product license key to enable the Connection Server to orchestrate virtual desktops and applications. Encountering an "invalid license key" error completely halts administrative workflows and prevents user access.
If the Horizon Console interface is entirely inaccessible, you can manually inject a valid license key into the VMware Active Directory Application Mode (ADAM) Lightweight Directory Services (LDS) database. 1. Connect to the Database Log into the Connection Server as an Administrator. Open ( adsiedit.msc ).
If you are on a subscription model, ensure your contract has not lapsed. An expired subscription can sometimes report as "Invalid" rather than "Expired" depending on the build. After upgrade, it says "invalid
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
This guide breaks down why this happens and how to fix it quickly to restore your VDI environment. 1. Common Causes for License Invalidity
Ensure that the vCenter operations manager is successfully registered, and the vCenter appliance is functional, before applying the license in the Horizon Console. 4. Check for "License Sync Failure"
A Connection Server rejects a license key for several specific reasons:
Back up your Horizon Connection Server or take a virtual machine snapshot before modifying the LDAP database. Log in to the Connection Server host machine. Open the Start menu, type adsiedit.msc , and press Enter .