My server fine this morning...
All of a sudden users can't login - GW POA shows LDAP error 81

Absolutly nothing changed - server not touched for 85+ days !

Rebooted Server and I get the following

"error:NWDSRead Failed while reading a multivalued attribute: -603"

Ran DSRepaire - NO problems.

Googled the error but seems to suggests a DHCP/DNS error
Not using either on the server

I'm using a ISP's Server for DNS