Robert posted the cause of “SCVMM 2008 Error (2927) A Hardware Management error has occurred trying to contact server <your host name comes here>. (Unknown error (0x80338029)). As it turned out, during refresh we didn’t wait long enough for a wsman response. The operation that timed out was to enumerate SAN LUNs. In SCVMM 2008 this timeout is 120 seconds by default. Fortunately, we can increase this timeout to a maximum of 300 seconds. To resolve: 1. Use Registry Editor on SCVMM 2008 Host and locate [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft System Center Virtual Machine Manager Server\Settings] 2. Add DWORD Value named IndigoSendTimeout 3. Set this value to decimal 299 4. Restart VMM service (net stop vmmservice & net start vmmservice). Important note: SCVMM 2008 R2 already has a higher default value of 330 seconds. There should be no need to increase this value. If you modify this value for SCVMM 2008, be sure to remove it before you upgrade to SCVMM 2008 R2, otherwise you would run with a lower timeout then the default,” explained Robert.