Hi Navnath Manere,
Thank you for reaching out to us on the Microsoft Q&A forum.
Are you attempting to access the AVD on-premises or within Azure?
If within Azure, are you connecting from within the same Virtual Network or from different Virtual Networks?
if possible, could you share your topology diagram from the source to the destination path.
In the meantime, please confirm that the user trying to access the Virtual Desktop has the necessary permissions and that their session is not being blocked by any conditional access policies. Verify that the AVD infrastructure, including the host pool, session hosts, and virtual network is properly configured, and check for any issues with the session hosts.
If the information is helpful, please consider by clicking the " Accept answer and Upvote " on the post.
If you have any further queries, please let us know in the comment.