VMware Horizon Community
Sravan_k
Expert
Expert

can not contact App vol manager error

Hi Everyone,

I got one strange error on end-user machine saying that can not connect app vol manager, but I can ping manager from end-user VDI machine

Please find the below pic for more information.

Appvol-issu.PNG.jpg

9 Replies
DSigmond
Enthusiast
Enthusiast

Hi Vkmr,

Are you sure the specific agent is looking at the correct address and port for the manager?

To verify on the machine with the agent installed, please check:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\svservice\Parameters

In addition, check if the certificate is trusted:

Using SSL Certificates with App Volumes Manager (2148178) | VMware KB

To disable: VMware Documentation Library

To  replace: Replacing the Self-Signed Certificate in VMware App Volumes 2.12

Regards,

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sjesse
Leadership
Leadership

If you haven't fixed this yet, try looking at your dhcp logs and see if the virtual had problems getting an ip address. I've seen a case where virtuals wouldn't get an ip address for a long time, and then they would. I think app volumes service times out after awhile(I think 3 minutes) and it won't try and reconnect, even though it finally got a correct ip address. I our case a vlan wasn't tagged on one of the two switches we where using for this environment. This made one virtuals on one blade get ip addresses, and not on another.

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Sravan_k
Expert
Expert

Is it port 80?

I can see "app-volume-manager-name:80"

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Sravan_k
Expert
Expert

It is randomly happening with random users 

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Ray_handels
Virtuoso
Virtuoso

When you install the manager you can select if it accept incoming unsafe connections on port 80, by default this options is disabled so it WON'T accept connections on port 80.

If you did not select this option and you installed the manager with port 80 and not port 443 you could end up with an agent that cannot connect to the manager. Either reinstall the agent and select port 443 (HTTPS) or reinstall the manager and make sure to select the option to also allow unsafe connections.

To be honest I would select option 1. reinstall the agent and make sure to connect using https (port 443).

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HussamRabaya
VMware Employee
VMware Employee

Even with correct setting of agent connection and or SSL verification I have experience this behavior randomly , and when we open call with VMware the couldn’t have direct answer and at the end they said upgrade to latest version

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techguy129
Expert
Expert

I had this issue when my agents and manager were not on the same version. The agent and manager logs should give you more details as to what the issue it.

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Sravan_k
Expert
Expert

I am with you techguy129, My agent and manager are running accordingly and unfortunately it is happening randomly, I will keep an eye on log's if I see it next time

Thank you,

Vkmr.  

schroder_r
Contributor
Contributor

This occurred at my VMware Horizon View environment after transferrring DHCP service from one DC to a new DC.

After reversing my actions, all clear again.

cheers

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