The Problem
Microsoft has changed the size of the BRPT token used in Entra ID authentication. This change affects Workspot’s Entra ID-Only customers’ ability to sign into their Workspot desktops.
Are you Affected?
Most customers are not affected.
This issue affects customer with Workspot’s “Entra ID-Only” selective option, which allows Entra ID to be used instead of Active Directory on Workspot desktops and application servers.
The Solution
Windows Desktop Agent 4.5.1 solves this issue.
Existing Persistent Desktops and Application Servers
Your Workspot desktops and application servers will automatically update starting on October 11, 2025 in the US and October 14, 2025 in the EU.
The release was uploaded to https://download.workspot.com/WorkspotAgentSetup(4.5.1.2581).msi on October 6, 2025.
See The Workspot Windows Desktop Agent for more information.
Templates and New VMs
Your templates need to be updated to use Agent 4.5.1, and these updated templates need to be applied to your desktop pools and application server pools for new VMs to function properly.
Prerequisite
This requires the Agent 4.5.1 release binary, available on October 6, 2025 in https://download.workspot.com.
Procedure
For each template currently used by a pool:
Clone your existing template. This will create a new draft-mode template.
See “Clone the Template” in Using Workspot Templates.
Sign into the cloned template.
See “Signing into the Template” in Using Workspot Templates.
Install Agent 4.5.1 manually.
See “Installing the Agent Manually” in The Workspot Windows Desktop Agent.
Apply the template to the pool.
If You Have Problems
If you encounter this issue before the release dates above, contact Workspot for assistance.