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Outage in TeamViewer

DEX Platform licensing service. Affected environments are unable to retrieve licensing information,

Resolved Major
June 27, 2026 - Started 21 days ago - Lasted 5 days
Official incident page

Incident Report

Summary AI Generated

A certificate embedded in the Licensing.dll file expired, causing the TeamViewer DEX Platform Coordinator service to fail on Single Tenancy and On-Premises environments. Affected users were unable to log in or execute instructions on the platform, receiving licensing retrieval errors, though client connectivity remained unaffected. The issue lasted approximately 119.5 hours and was resolved through hotfixes across supported versions, with workarounds made available in the interim.

We are investigating an issue affecting the DEX Platform licensing service. Affected environments are unable to retrieve licensing information, which prevents instructions from being executed on the platform and/or preventing access. Impact Single Tenancy and On-Premises environments are affected Users see the error: "Licence Error The system in unable to retrieve it's license information" when trying to log in Infrastructure logs show: VerifyActivationSignature: failed(3) If users are already in the platform Instruction execution is unavailable will be presented with Error Cannot retrieve licensing information. Please see log for details. Client connectivity is not affected Current Status Our engineering and support teams are actively investigating the root cause. An out-of-hours escalation has been triggered and the cloud engineering team has been engaged. We are working towards a resolution and will provide updates every two hours. Next Update We will provide the next update by 20:00 UTC on 27 June 2026.

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Latest Updates ( sorted recent to last )
RESOLVED 16 days ago - at 07/02/2026 05:12PM

This issue has now been resolved.
Further details can be found here
https://support.1e.com/portal/6/CUSTSUP/article/2668429367/Licensing.dll%20certificate%20expired:%20Users%20are%20unable%20to%20login%20to%20the%20Platform%20UI%20and%20the%20coordinator%20service%20will%20not%20stay%20running.

MONITORING 19 days ago - at 06/29/2026 02:36PM

Our teams are continuing work on hotfixes for the various supported versions.
We have provided workarounds which are detailed in the following article depending on which version is being used. https://support.1e.com/portal/6/CUSTSUP/article/2668429367/Licensing.dll%20certificate%20expired:%20Users%20are%20unable%20to%20login%20to%20the%20Platform%20UI%20and%20the%20coordinator%20service%20will%20not%20stay%20running.

We will continue to monitor the situation and provide an update by 14:00 UTC on Tuesday 30th June

MONITORING 20 days ago - at 06/28/2026 12:49PM

Our teams have created a hotfix and provided workarounds which are detailed in the following article depending on which version is being used. https://support.1e.com/portal/6/CUSTSUP/article/2668429367/Licensing.dll%20certificate%20expired:%20Users%20are%20unable%20to%20login%20to%20the%20Platform%20UI%20and%20the%20coordinator%20service%20will%20not%20stay%20running.

We will continue to monitor the situation and provide an update by 13:00 UTC on Monday 29th June

IDENTIFIED 20 days ago - at 06/28/2026 09:55AM

Our teams are busy creating suitable hotfixes for the DEX Platform.
More information will be available shortly covering the various versions via the banner on the Support Portal.
The manual fix is still available as the previous update

The next update will be before 14:00 UTC

IDENTIFIED 20 days ago - at 06/27/2026 09:37PM

We have identified the root cause. The License.dll file that is used to communicate with the Licensing services has an embedded certificate, this certificate expired preventing the Coordinator service from starting.
Our teams are working on the Hotfix We have resolved the issue with Single tenant SaaS Environments and have a manual fix to resolve On Prem customers prior to the hotfix being released. https://support.1e.com/portal/6/CUSTSUP/article/2668298242/Users%20are%20unable%20to%20login%20the%20Platform%20UI%20and%20the%20coordinator%20server%20will%20not%20start.
Further updates will be provided 28/6/26 @10am

IDENTIFIED 21 days ago - at 06/27/2026 07:10PM

We have identified the issue and teams are working towards a fix.

INVESTIGATING 21 days ago - at 06/27/2026 05:46PM

We are investigating an issue affecting the DEX Platform licensing service. Affected environments are unable to retrieve licensing information, which prevents instructions from being executed on the platform and/or preventing access.

Impact

Single Tenancy and On-Premises environments are affected

Users see the error: "Licence Error The system in unable to retrieve it's license information" when trying to log in

Infrastructure logs show: VerifyActivationSignature: failed(3)

If users are already in the platform Instruction execution is unavailable will be presented with Error Cannot retrieve licensing information. Please see log for details.

Client connectivity is not affected



Current Status
Our engineering and support teams are actively investigating the root cause. An out-of-hours escalation has been triggered and the cloud engineering team has been engaged. We are working towards a resolution and will provide updates every two hours.

Next Update
We will provide the next update by 20:00 UTC on 27 June 2026.

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