In Event Viewer > Windows Logs > Application, you notice an event with ID 3277 having "ENDPOINT_NOT_FOUND" in its description.
Which of the following is the possible reason for this issue?
Click on the arrows to vote for the correct answer
A. B. C. D. E.Correct Answer: E
Go to Event Viewer -> Windows Logs -> Application.
If you notice an event with ID 3277 that states "ENDPOINT_NOT_FOUND" in its description it means the broker could not find any endpoint to make a connection with.
This connection related problem might happen due to any one of the below reasons: There are no virtual machines in your host pool.
The virtual machines in your host pool are not active.
All virtual machines in your host pool have crossed the max session limit.
No virtual machine in your host pool has the agent service running on it.
Option A is incorrect.
The connection issue may arise because of any one of the given reasons.
Option B is incorrect.
One of the possible reasons for the connection issue is "the virtual machines in your host pool are not active”
Other given options are also valid reasons.
Option C is incorrect.
One of the possible reasons for the connection issue is "All virtual machines in your host pool have crossed the max session limit”
Other given options are also valid reasons.
Option D is incorrect.
The given one is also one of the valid reasons but other options are also valid.
Option E is correct.
The connection issue may arise because of any one of the given reasons.
To know more about how to troubleshoot common Azure Virtual Desktop Agent issues, please visit the below-given link:
The event with ID 3277 and the "ENDPOINT_NOT_FOUND" description in the Windows Logs Application of Event Viewer is an indication that there is an issue with the endpoint that Azure Virtual Desktop is trying to communicate with. The possible reason for this issue could be one of the following:
A. There is no VM in your host pool: This is an unlikely scenario because if there were no VMs in your host pool, you wouldn't have been able to create a session host. Therefore, this is not the possible reason for the issue.
B. The virtual machines in your host pool are not active: If the virtual machines in your host pool are not active, Azure Virtual Desktop won't be able to establish a connection with them. This could be due to various reasons such as the virtual machines being shut down or disconnected from the network. Therefore, this could be a possible reason for the issue.
C. All virtual machines in your host pool have crossed the max session limit: If all virtual machines in your host pool have crossed the maximum session limit, Azure Virtual Desktop won't be able to establish a new session with any of the virtual machines. This could be due to the maximum number of sessions allowed per virtual machine being reached. Therefore, this could be a possible reason for the issue.
D. None of the virtual machines in your host pool has the agent service running on it: If the agent service is not running on any of the virtual machines in your host pool, Azure Virtual Desktop won't be able to establish a connection with them. The agent service is responsible for managing communication between the virtual machines and Azure Virtual Desktop. Therefore, this could be a possible reason for the issue.
In conclusion, the possible reasons for the issue could be either B, C, or D. It could be a combination of these reasons or just one of them. To troubleshoot the issue, you should check the status of the virtual machines in your host pool, verify the maximum session limit for each virtual machine, and check if the agent service is running on each virtual machine.