Horizon Connection Server License Key Is Invalid | HOT • How-To |

Log into the Windows Server hosting the Horizon Connection Server.

Ensure the key follows the standard format: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX .

Set calendar reminders 30 days prior to license expirations.

The "Horizon Connection Server license key is invalid" error is a frustrating issue that can prevent users from accessing their virtual desktops and applications. This error typically occurs when the license key for VMware Horizon Connection Server is not valid or has expired. In this article, we will explore the causes of this error, its consequences, and provide a step-by-step guide on how to resolve it.

Horizon keys are specific to editions (Standard, Advanced, Enterprise). Attempting to apply a Horizon Standard key to an environment utilizing Enterprise features can trigger validation failures. horizon connection server license key is invalid

Moving away from on-premises Connection Servers and their associated licensing headaches altogether is another viable path.

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Ensure the key matches this format: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX .

If you recently upgraded your Horizon environment to an Omnissa-branded release and your legacy VMware portal key is rejected: Log into your . Navigate to the License Management section. Locate your Horizon deployment active subscriptions. Log into the Windows Server hosting the Horizon

Troubleshooting the "Horizon Connection Server License Key is Invalid" Error

Hidden characters, trailing spaces, or carriage returns copied from emails or PDFs often corrupt the key. The Connection Server expects a clean, alphanumeric string. 3. Subscription vs. Perpetual Logic

With the shift toward the Horizon Universal License, older perpetual keys may no longer be recognized by the latest Connection Server builds.

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You must deploy the virtual appliance.

Did this error happen right after an or a renewed key installation ?

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 .