diff --git a/fhem/FHEM/96_allowed.pm b/fhem/FHEM/96_allowed.pm
index b18289f6f..cae34f2ef 100644
--- a/fhem/FHEM/96_allowed.pm
+++ b/fhem/FHEM/96_allowed.pm
@@ -146,6 +146,7 @@ allowed_Authenticate($$$$)
       }
 
     }
+    Log3 $me, 4, "Login denied for $user via $cl->{NAME}" if(!$pwok);
 
     # Add Cookie header ONLY if authentication with basicAuth was succesful
     if($pwok && (!defined($authcookie) || $secret ne $authcookie)) {