Hello,
I have a 2010 Edge Transport on our DMZ. I have a 2010 Exchange server in our private network. Port are open on the firewall. I can ping, nslookup and telnet between them. I created Edge Subscription on the Transport server. On the Exchange server I create the new edge subscritpion. When I Start-EdgeSyncronization or Test-EdgeSincronization, both results fail with "LDAP server is unavailable" Please someone point me in the proper direction here to resolve this. I have already removed the Edge Subscription on the exchange server and deleted the cert on the transport server, recreated and reimport and same thing.