Recently our server hangs after a few days of use, it becomes totally unresponsive. When you try physically logging on to the console the login screen is missing, you only have a blue background and you can move the mouse cursor. The disk lights keep blinking so it appears it's still doing something except when you try to rdp or you have an existing session the desktop doesn't seem to respond to mouse interaction or keyboard input and also the taskbar is missing. We have monitored cpu, memory, network and disk usage using perfmon, everything seems normal as fas as we can tell and nothing is logged in the event log when the server hangs. The only way to get the server running again is by hard resetting the server. I have found the following KB article: Which seemed to fit the bill, except the hotfix that is available for download is a much older version then the one that's installed on the server, the last update on the mrxsmb.sys is dated april 2011. The server has win2k3 r2 standard x86 with latest service pack and patches, it has the following roles, DC, DNS, DHCP, WSUS, WDS, File & Print server. We thought defective hardware was causing this but after swapping the hardware the problems reappeared. We've been struggling with this issue for awhile now, any help would be appreciated. On a side note we have considered the anti-virus software but the virus scanner isn't logging anything strange.

Hi DannySan, I had the same issue a few months ago however the physical server was responding to requests the RDP sessions was stale, we fixed it by simply updating the video card drivers. What hardware did you swap out? and does the memory/cpu usage spike before it stops responding?

have you tried to rdp into the server when it fails? is there a scheduled task that coincides with the "hang"? do you have a memory dump you can post here and get one of the Microsoft weenies to review? have you tried eliminating roles one at a time to isolate a possible problem?