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Server 2008R2 Remote desktop host disconnecting all connected randomly

Last Modified: 2016-11-23

Iam having some issues with my Windows 2008R2 terminal server disconnecting users randomly.

I have bought 15 Per user CALS for 2008R2 installed it on our central remote desktop license server. I have installed a Server 2008R2 instance and only installed Remote desktop service host and specified Per user licensing and specified the Central license server.

When Domain\Administrator connects the session will stay on for days. as soon as more than 3 people connect the session disconnects all users (including admin) randomly and also at random intervals. THe sessions stays open but changes to diconnected state.

I have done the following to troubleshoot and still the same issue.

Installed a brand new server 2008R2 server , added to domain, installed remote desktop host service and pointed to the central license server.... Still the same issue

Have moved the CAL's to the Terminal server and still the same issue. (installed remote desktop host license role)

I had to fall back to the windows 2003 terminal server so that the users can continue to work.

All this running on ESXi 4.1 on Dell Blade hardware.
Virtual VMXNET 3 network cards (10gb)

i do get the attached error on licensing manager under review configuration

any suggestions ?
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