Virtual Machine Manager lost the connection to the virtual machine

I have been using System Center 2012 R2 and App Controller 2012 R2 to provide a web portal for students to access their virtual machines online for labs. This worked well this past semester. Now, when I try to use the App Controller Console feature to connect to a virtual machine, I get the error "Virtual Machine Manager lost the connection to the virtual machine". The App Controller Console feature works inside the LAN, but no longer through the Internet. I can see the VMs, start, pause, stop them, etc., but can no longer console connect to them. Any insight would be greatly appreciated.

Additional Info:
I have two servers; one is 2008, and is the Domain controller, DNS server, DHCP Server.
The second server is 2012 R2 and is a member server of the domain. This server has SCVMM 2012 R2 and App Controller 2012 R2 installed.
I have virtual machines hosted on both servers. I can access any virtual machine hosted on either machine using App Controller inside the network.
From the Internet (at home), using App Controller, I can only access the virtual machines hosted on the 2008 server. Trying to console into the virtual machines hosted on the 2012 R2 server gives me the error mentioned above.

Thanks,

Tommy


  • Moved by BrianEhMVP Thursday, May 21, 2015 9:05 PM
  • Edited by tadeimy Monday, May 25, 2015 4:03 PM
May 21st, 2015 8:34pm

Richard,

Thanks for the reply. This was working for vms hosted on either server. Now, I can no longer connect using the App Controller console to any of the machines hosted on the 2012 R2 Server. I can connect to the machines hosted on the 2008 Server. I need to know why. What port(s) might be getting blocked, as I have tried opening certain ports up through my firewall (ie., 2179), as well as on the server software firewall? Why would it work for the 2008 server and not the 2012 server? Also, as mentioned in my original post, if I am inside the LAN, I can use App Controller Console to connect to vms hosted on either Server.

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May 27th, 2015 7:29am

Hi Tommy,

I can't assist you with determining why it works for VMs on one server but not another since using console connect from the internet with App Controller is not a supported configuration (i.e. it is not something the product team tests or documents how to do).

Regards

Richard

May 27th, 2015 12:20pm

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