I am having problems setting up basic AD authentication with gitea on my corporate network. The screen grab shows the general settings I am using
When I log in with an existing AD user the gitea logs give me the following 
2019/12/27 14:32:00 …es/auth/ldap/ldap.go:147:bindUser() [D] LDAP auth. failed for OU=Users,DC=cbfsai,DC=local%!(EXTRA string=aduser), reason: LDAP Result Code 49 “Invalid Credentials”: 80090308: LdapErr: DSID-0C090400, comment: AcceptSecurityContext error, data 52e, v1db1\003d
2019/12/27 14:32:00 …s/context/context.go:137:HTML() [D] Template: user/auth/signin
2019/12/27 14:32:00 routers/user/auth.go:165:SignInPost() [I] Failed authentication attempt for aduserfrom 10.3.75.129