DVLS: SCHEDULER_NO_STANDBY_AVAILABLE

DVLS: SCHEDULER_NO_STANDBY_AVAILABLE

avatar
Andreas

DVLS 2025.1.4.0

Hi All

Since 2025 Update we have a sporadic crash of the DVLS Scheduler.

First, i reveive the Email:

After checking the Service, its still running but not working anymore.

When i try to restart, its not possible directly.

Only stopping the Service will completely close the Process which throws a 1053:

After this im able to normal start the Process again until the next time.

I dont find any usable Log Informations until this in the Console:

What can i dot for further troubleshooting?

Thanks,

Andreas

All Comments (3)

avatar
Michel Audi

Hello Andreas,

Thank you for reaching out to our forum. The issue you're encountering with the Scheduler Service can stem from several possible causes, such as:

  • The required .NET runtime is either missing or corrupted

  • The service is running under an account that lacks the necessary permissions

  • Security tools (like antivirus or firewall) are delaying or blocking the service

  • The service path is broken or misconfigured

Here’s what I recommend checking next:

  1. Open the Devolutions Console, go to the Support tab, and run the IIS Diagnostic tool to confirm that all prerequisites are in place.

  2. In Windows Services, verify the account used to run the Scheduler Service. If issues persist, try changing it to Local Service and test again.

  3. Check Event Viewer (Application and System logs) for recent errors related to .NET Runtime or other relevant services.

  4. Confirm that no new security rules or antivirus updates are interfering with the service.

If neither helps try to go under companion Tab and unistall and reinstall the scheduler.

Additionally, here’s a helpful article that explains how to enable debug logging for the Scheduler Service:

https://docs.devolutions.net/server/kb/knowledge-base/scheduler-service-general-information/#enable-scheduler-logging

Let me know what you find, and I’ll be happy to assist further.

Michel Audi