Hi ADITYA RAJ,
Welcome to the Microsoft Q&A forum.
Based on your question description we understand that you Host Pool is in unhealthy state.
Here are some steps you can take to troubleshoot and resolve the issue:
- Ensure that your Azure Virtual Desktop Agent and Boot Loader are installed and running on your session host VM.
- Make sure your session host VM is properly connected to the network and can communicate and check the Network Security Group (NSG) rules to ensure they are not blocking required traffic.
- Check the event logs on your session host VM for any errors or warnings that might indicate why the health status is unhealthy. Ensure that your session host VM is properly joined to the domain.
Please find the below document for your reference:
Session host virtual machine configuration
Session host statuses and health checks in Azure Virtual Desktop
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Thank You.