No connection to Azure VM via RDP-Client App

Question

Hello community, I need to connect my laptop to an Azure VM.
This works perfectly via the browser.
Here i have a link from my customer taht directs me to the session desktop and logs me in, directly to the VM.
Using the RemoteDesktop client (App), I can log in and have the same link to the Session Desktop.
If I want to log in from there, the login dialog comes up with a password request, then the 2FA request via MS Authenticator app and then the waiting-donut comes up for just minutes until it basically stops.
The following error message:
[Window Title]
Remote Desktop
[content]
There was a problem connecting to the remote resource. Ask the network administrator for help.
[Expanded Information]
Error Code: 0x3000008 Extended Error Code: 0x0
Time Stamp (UTC): 2024-02-15T07:09:11.786Z
Activity ID: caee5275-756b-45f7-9f2b-00b367cf0000
I'm absolutely not getting anywhere here. My customer's IT will not help me on my personal laptop. Other colleagues have no problems and it worked for me in the past as well.
At first it was normal, then the login time took longer and longer (up to 6 minutes in the end) and now since the beginning of December nothing has been possible except via the web browser.
I'm really at a loss and don't know where to start searching for a solution. Everything I've found so far in terms of potential help tips has always come from the Azure site, but as I said, it works for all the others. Are there perhaps any helpful logs I could read? Thanks in advanced for any tip!

Answer 1

Hi Telefisch,

The error code 0x3000008 is a generic error that indicates the Remote Desktop client was not able to connect to the remote resource. You can follow the below checklist however some of this task will require accessw to your customer resource: https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/troubleshoot-rdp-connection

• Check your network connection: Verify if you have the same problem on different Azure VM.
• Reset your RDP connection: Disabled Windows Firewall rules and test the connection.
• Check Network Security Group rules / Cloud Services endpoints, It's required to have access to azure resource where is deployed this VM and verify the necessary ports are open and not blocked by any firewall.
• Review VM console logs
• Reset the NIC for the VM, Sometimes, resetting the network interface can help.
• Check the VM Resource Health, This can provide information if there’s any issue with the VM itself.
• Restart your VM: A simple restart can sometimes resolve the issue.
• Redeploy your VM: If none of the above steps work, you might need to redeploy your VM, If there is production workload could be an option.

Let me know if this help you,

Luis