I have an OpenBSD LDAP server for single sign on purposes, I know that its working because my Ubuntu client can authenticate against it without any issues.
OpenSUSE will not authenticate against my server. At the display manager login, it simply says could not retrieve authentication information. However, I am able to browse the directory using YaST's LDAP browser. I thought it may be an issue that I am not using TLS, but I am still able to query the directory.
Edit: Something strange I have found, if I run the command:
su - SomeLDAPUser
I will actually get a prompt as if I was the logged on user.