The network connection to the bastion host appears unstable

RaziEngg 1 Reputation point
2022-05-09T11:00:59.443+00:00

Unable to connect through virtual machine via Azure Bastion and getting the error "The network connection to the bastion host appears unstable".

Azure Bastion
Azure Bastion
An Azure service that provides private and fully managed Remote Desktop Protocol (RDP) and Secure Shell (SSH) access to virtual machines.
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  1. Luis Rodriguez 6,196 Reputation points Microsoft Employee
    2022-05-09T12:40:57.897+00:00

    Hello @RaziEngg

    Welcome to Microsoft Q&A Platform.

    Did you check if you can connect via RDP from a jumpbox VM instead bastion?
    Are you using the default RDP port (3389) or has it been changed?
    Did you confirm that RDP traffic allowed via NSG?

    Please check the threads below as they are related to the same issue:
    https://github.com/MicrosoftDocs/azure-docs/issues/33632
    https://video2.skills-academy.com/en-us/answers/questions/36226/azure-bastion-fails-to-connect-over-rdp-black-scre.html

    Bastion NSG settings:
    https://video2.skills-academy.com/en-us/azure/bastion/bastion-nsg

    I hope this helps!

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  2. Karthikeyan Annadurai 0 Reputation points
    2023-06-23T02:08:54.43+00:00

    We have the same issue. I can only fix the Bastion connectivity to the VM by restarting the target VM. I have created an MSFT support ticket and working on it.

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