Azure virtual machine extension status showing as 'Unavailable'.

Question

_{Thursday, September 12, 2019 9:20 AM}

Hi All,

All the extensions of an azure windows virtual machine is showing as "Unavailable" in azure portal. I have checked the status of the virtual machine, its running and I can RDP it.

When I checked for VM name in overview its showing as 'Not available', but the VM is running.

What can you suggest here ?

Thanks,

Vinay

All replies (6)

_{Monday, September 16, 2019 10:27 AM ✅Answered}

Hi, Thanks for the suggestions.

Actually the issue was with guest agent. The agent was corrupt, that's why the guest agent service was not showing up in services.msc. The issue got resolved after removing the guest agent  from control panel and reinstalling it.

thanks,

vinay

_{Thursday, September 12, 2019 9:30 AM | 1 vote}

Hi Vinaya, 

Can you check if you have any User Defined Routes attached to the subnets of VM which has this issue?

Do you have a Site to Site or Express Route to this VNET with force tunneling ?

Can you try manually install the Windows Azure Guest Agent according to the following document;

https://docs.microsoft.com/en-us/azure/virtual-machines/extensions/agent-windows#install-the-vm-agent

Regards, 

Msrini

_{Thursday, September 12, 2019 11:15 AM}

Hi,

Thanks for the suggestions.

I have checked for the user defined routes, its not configured to the subnet.

Express route is there for the Vnet but not sure about the force tunneling.

Tried installing the guest agent following the steps provided, but it will show a error message saying 'Another version of the product is installed'. But the 'Windows Azure Guest Agent' service is not present in services.msc and the 'WindowsAzureGuestAgent.exe' is not present in task manager.

Thanks,

Vinay 

_{Thursday, September 12, 2019 11:24 AM}

Hi, 

It seems like a version mismatch. 

Are you seeing a route with 0.0.0.0/0 being advertised to your Virtual Machine?

You can get this info by navigating to any VM's NIC and selecting the Effective routes. 

Also, please take a look at the below document and follow the troubleshooting steps mentioned here:

/en-us/azure/virtual-machines/extensions/troubleshoot

Regards, 

Msrini

_{Thursday, September 12, 2019 1:57 PM}

Do you have any NSG/Firewall associated with the VM or the subnet? Make sure you are not blocking access to 'AzureCloud' service tag or 168.63.129.16. If everything appears to be okay, try 'Stop' and 'Start' (do not Restart). Please refer the link below for further details.

/en-us/azure/virtual-machines/extensions/features-windows

_{Monday, September 16, 2019 11:50 AM}

Thank you Vinaya for providing the solution to help other community members.

Regards, 

Msrini