Windows Server 2008R2 Update KB3161949 Causes SMB Issues

I have had this issue plaguing my help desk for a while now without being able to find the root cause.  Eventually, they convinced me it wasn’t the two particular MFP’s having issues (I have dozens deployed with no issues) and I started digging.  I came across the issues with KB3161949 while I was digging and saw that these two MFP’s hadn’t worked since I installed that update (let’s just make it easy and say until I came around WU’s were never done on servers).  Anywho, I just followed the instructions from the technet article, bounced the box, and when we tested the next morning it was right as rain.


Value Name: AllowNBToInternet
Type: Dword
Value: 1
Default value of the flag: 0