{
                using (PrincipalContext ctx = new PrincipalContext(ContextType.Domain, {{domainName}}, {{myUserName}}, {{MyPassword}}))
                {
                    var valid = ctx.ValidateCredentials({{givenUsername}}, {{givenPassword}});
                    if (!valid)
                        throw new Exception("Username or Password are incorrect");
                    using (UserPrincipal qbeUser = UserPrincipal.FindByIdentity(ctx, username.ToLower()))
                    {
//stuff
}
}
}```

expected results would be that the users from both groups are able to log in