We are using the live_lookup_ad_and_ldap.php script for quite a while now without issues. A week ago it starting to get very slow on results; it is still working, but the lookup now takes 20 seconds, which seems a bit to much for a simple AD query. The only differes I can think of we have now compared to a few weeks ago is the fact, that we upgraded our Domain Controllers from 2008 R2 to 2012 R2 and that seems to be the time around it started to be that slow. It is not super critical but a tad annoying to wait that long for an answer on the lookup, so I was wondering if anyone has an idea what could be the cause of the problem. Is there any form of debugging I could switch on in order to see what the script does in all these 20 seconds? Because I have a hard time believing the AD realy only puts out the answer of that question after 20s as using standard ldap query tools get me the answer as they should.
We are currently using HelpSpot 3.2.12 on a Windows Server 2008 R2 machine.
On another sidenote, we are also using the blackbox mechanics to auth. ourselfs for login into helpspot (against the same DC) and that doesnt take 20s before I am in. That is just like it always has been.