|My SBS 2011 server sporadically drops connection - SOLVED|
For me, It was not a malfunctioning NIC, but rather an IP conflict between SBS and the Remote Management Interface in the BIOS - IPMI.
Thank you to those who worked this thread:
And especially Tony for his inspiration which in turn caused mine to occur as well.
I had been fighting this for some time thinking it was an SBS DNS or AD issue, but it was a simple IP conflict with the Remote Management Interface on the Dell server.
Funny how it's inevitably a simple answer, but an intricate journey to the question.