Re: [FortiGate 60D] Notification: Can't contact LDAP server
Have you checked following ..
- routing on FGT, and all the way to LDAP .. any asymmetry or routing issue ?
- firewall on the way not allowing ICMP from FGT but allowing it from LDAP ?
- any firewall on LDAP/AD itself ?
- on FGT what's on packet capture .. any ingress of ICMP ?
- on FGT any local in policy preventing that ?
- on FGT what's in flow debug ?
I guess that some of those steps will give you a hint what's going on.