Random Internal Server Error on MVC 3

Random Internal Server Error on MVC 3

I'm dealing with random internal server errors and I'd like to pin down
the cause.
in the failed req log i'm seeing.
ModuleName ManagedPipelineHandler
Notification 128
HttpStatus 500
HttpReason Internal Server Error
HttpSubStatus 0
ErrorCode 2147942464
ConfigExceptionInfo
Notification EXECUTE_REQUEST_HANDLER
ErrorCode The specified network name is no longer available. (0x80070040)
Is there any way to track where this error is coming from? I'm thinking
that whatever is happening is slowing down the page load times for users.
And it's frustrating to watch a page just sit there for a few minutes
trying to load.