Hi @Imran Patel ,
Welcome to Q&A forum!
This situation is rather complicated and there are many reasons for it.
Here are some additional steps you can try:
Timer Service Stopping
- Ensure that the Timer Service is set to start automatically.
- Check for any scheduled tasks or scripts that might be stopping the service.
- Review the Event Viewer logs for any errors or warnings related to the Timer Service.
References:
WSP Deployment Issues
Please try to follow the steps in the following article to deploy WSP SharePoint 2019 Solutions using PowerShell:
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.
Application Pool Instability
- Check the application pool settings in IIS to ensure they are configured correctly.
- Review the Event Viewer logs for any errors or warnings related to the application pool.
- Consider increasing the memory allocation for the application pool if it's running out of resources.
Good day!
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