Outage in ISL Online
ISL Online Cloud - Ctrl+Alt+Del shortcut not working on remote computers with Secure Attention Sequence disabled - August 28th, 2026
Resolved MinorIncident Report
Summary AI Generated
A bug introduced in ISL Online version 5.0.2551.150 caused the Ctrl+Alt+Del shortcut to stop working during remote sessions when the Windows Secure Attention Sequence (SAS) policy was set to "None," affecting users globally across all regions. The issue stemmed from a change in how ISL applications interact with the Windows SAS API. A fix was released in version 5.0.2551.156 for ISL AlwaysOn, ISL Light, and ISL Light Client, resolving the incident after approximately 69 hours.
We have identified the root cause of the issue affecting some ISL Online Cloud users with the Ctrl+Alt+Del shortcut not working during remote sessions.
This is caused by a recent update to how our ISL applications interact with the Windows Secure Attention Sequence (SAS) API. The interaction stops working when SAS is enabled, but the application allowed to generate SAS is set to None in the system policy. This issue only affects the latest version, 5.0.2551.150 (https://help.islonline.com/20067/502551147).
As a workaround, affected users can either use the previous version of the ISL applications, or enable SAS generation on the remote computer by setting the policy to either "Ease of Access applications" or "Services and Ease of Access applications".
Our team is working to develop and implement a solution as quickly as possible.
We apologize for any inconvenience this may cause and will continue to provide updates on our progress.
Components affected
ISL Online Africa ISL Online Asia ISL Online Australia ISL Online Europe ISL Online North America ISL Online South AmericaTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
about 1 month ago - at 08/31/2026 06:15AM
We have resolved the issue affecting some ISL Online Cloud users with the Ctrl+Alt+Del shortcut not working during remote sessions.
The fix is included in ISL AlwaysOn, ISL Light, and ISL Light Client version 5.0.2551.156 for Desktop. The service is fully operational, and our team is continuing to monitor the situation to ensure that there are no further issues.
We apologize for any inconvenience this may have caused and appreciate your patience during this time.
MONITORING
about 2 months ago - at 08/28/2026 01:22PM
We have implemented a solution to the issue affecting some ISL Online Cloud users with the Ctrl+Alt+Del shortcut not working during remote sessions.
A fix is included in ISL AlwaysOn, ISL Light, and ISL Light Client version 5.0.2551.156 for Desktop, now available for hosted service users in all countries except Japan. We recommend updating to this version as soon as possible: https://help.islonline.com/20067/502551147
Our team is continuing to closely monitor the situation.
We apologize for any inconvenience this may have caused and will continue to provide updates on the situation.
IDENTIFIED
about 2 months ago - at 08/28/2026 09:14AM
We have identified the root cause of the issue affecting some ISL Online Cloud users with the Ctrl+Alt+Del shortcut not working during remote sessions.
This is caused by a recent update to how our ISL applications interact with the Windows Secure Attention Sequence (SAS) API. The interaction stops working when SAS is enabled, but the application allowed to generate SAS is set to None in the system policy. This issue only affects the latest version, 5.0.2551.150 (https://help.islonline.com/20067/502551147).
As a workaround, affected users can either use the previous version of the ISL applications, or enable SAS generation on the remote computer by setting the policy to either "Ease of Access applications" or "Services and Ease of Access applications".
Our team is working to develop and implement a solution as quickly as possible.
We apologize for any inconvenience this may cause and will continue to provide updates on our progress.
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