Active Directory Authentication FAILS

Active Directory Authentication FAILS

In previous version (6.x) of ELA, the AD Authentication piece worked fine. Now with 7.0 x64 it does not seem to want to work at all. I had it working initially 2 or 3 times, then it just...tanked. No clue or idea why. I went back thru all my settings, double-checked everything I could think of and .... NADA.   Any ideas, anyone? 

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