We have been experiencing a VERY odd error and I have no idea where to go from here. When users are logging in to a Standalone Windows 2008 R2 server in workgroup configuration, it causes the following error:
Event Log: System Event Source: Disk Event ID: 11 Research
Severity: Error
Details: The driver detected a controller error on \Device\Harddisk2\DR(number of drive varies).
There are multiple USB drives plugged in, and the drive that detects the error varies. I have tried 5 different drives, and 2 thumb drives, and all will throw this error periodically. It seems to be only 1 drive at a time that will throw this error.
1)THE DRIVES HAVE ALL BEEN VERIFIED CLEAN WITH MULTIPLE CHKDSKS
2)THE MOTHERBOARD ON THE SERVER HAS BEEN REPLACED TWICE
3)Switching ports does not affect the error. As I said, the MB was also replaced
3)The issue appears EXACTLY when a user logs in
Has anyone out there seen ANYTHING similar? Thanks in advance!
Best Answer
I have never seen that exact situtaion but something that might be worth looking into is if the is some kind of IRQ conflict between those devices . Conflicting devices are indicated by an exclamation or question mark in the device manager list. It could be the case that you have more then one usb device that is programmed at the hardware level to only use the same specific IRQs.