Thread:Extension talk:LDAP Authentication/Some users unable to auth via LDAP some can?/reply (10)

I found the issue after a lot of poking and prodding.

My "testuser" & "testuser2" accounts have the same password as the username.

When I set $wgLDAPUseLocal to false and used any random wrong password it would try to auth to LDAP with the incorrect password and fail as expected. When I tried to use the correct password "testuser" which was the same as the username it just failed to contact LDAP. When I changed testuser's password to "abcd1234" in LDAP everything worked.