last week we went live with a coexistance platform for lync 2013 our setup is as follows
OCS 2007 R2 Standard, no edge servers
Lync 2013 enterprise pool with two servers, also with no edge servers
we currently are hosting no external services through lync of OCS. Since going live some users have reported that they can not access the GAL through OCS. The one Mac user can not access the GAL either. however they can still look up un-normalized information by entering someones full SIP address. All users who are currently testing Lync are able to access the GAL without any problems. this so far has only affected the OCS user population and only about five of 250 users have reported it so far but i can recreate the issue with a new user every time.
Any assistance would be greatly appreciated. everything i'm finding is referring to lync users not being able to access teh address book.