Having a strange issue when we try to connect to our VM's after our upgrade to 5.1.1. Keep in mind, the VM's show "Available" in View Manager this entire time. On the first attempt to connect to a VM, the client will eventually time-out with the error "All Available desktop sources for this desktop are currently busy..." If I click "Try Again", I get "The display protocol for this desktop is currently not available". Then, if I click "Try Again", It connects and everything works perfectly. I can reproduce this over and over all day long. If I log off of the desktop and log back on, all works fine, however, if I restart the view agent, reboot the desktop, or re-compose the desktop, I have to go through the cycle of "Try Again" 3 times before I can get back in. This happens on all desktops in all pools and only started after our upgrade to 5.1.1. We are set up to use the PCoIP protocol and have 2 connection servers. Same results from both connection servers. Makes no difference if we enable PCoIP secure gateway or not. I'm really stumped...
2012-09-26T10:01:57.832-04:00 INFO (12D8-0E98) <TP-Processor2> [AuthorizationFilter] (SESSION:cc9b-***-e377) User PMINSCO\obem1 has successfully authenticated to VDM
2012-09-26T10:01:57.842-04:00 INFO (12D8-0E98) <TP-Processor2> [Audit] (SESSION:cc9b-***-e377) BROKER_LOGON:USER:PMINSCO\obem1;USERSID:S-1-5-21-2149947737-4086579574-1125231066-5508;USERDN:CN=S-1-5-21-2149947737-4086579574-1125231066-5508,CN=ForeignSecurityPrincipals,DC=vdi,DC=vmware,DC=int;
2012-09-26T10:02:00.675-04:00 INFO (0DC8-0CE8) <Thread-32> [g] (Request3) User obem1 connected to the Secure Gateway Server - session ID: 28B4-***-14B0
2012-09-26T10:02:04.182-04:00 INFO (12D8-1620) <CEIP:ConfigurationMonitor> [CEIP] CEIP: Disabled
2012-09-26T10:03:03.123-04:00 INFO (12D8-0E98) <TP-Processor2> [SessionLaunchContext] (SESSION:cc9b-***-e377) PMINSCO\obem1, App = SBS-Windows7-x32-LC: Session request failed.
(SESSION:cc9b-***-e377:) [PMINSCO\obem1, App = SBS-Windows7-x32-LC] (11ms): Attempted to start new managed session.
(SESSION:cc9b-***-e377:) [PMINSCO\obem1, App = SBS-Windows7-x32-LC] (60035ms): 1 server(s) were rejected because StartSession failure. Possible session clash. [d771aa6f-0f57-4efd-be55-dd4731da37e4]
(SESSION:cc9b-***-e377:) [PMINSCO\obem1, App = SBS-Windows7-x32-LC] (60037ms): Application launch failed, exception was: All available desktop sources for this desktop are currently busy. Please try again later.