diff --git a/fhem/FHEM/00_MQTT2_SERVER.pm b/fhem/FHEM/00_MQTT2_SERVER.pm
index dff104d1e..d64d89567 100644
--- a/fhem/FHEM/00_MQTT2_SERVER.pm
+++ b/fhem/FHEM/00_MQTT2_SERVER.pm
@@ -400,6 +400,8 @@ MQTT2_SERVER_Read($@)
     ($cid, $off) = MQTT2_SERVER_getStr($hash, $pl, $off);
 
     if($hash->{protoNum} > 4) {
+      Log3 $sname, 3, "$cname: unsuported protocol version $hash->{protoNum}, ".
+                      "closing the connection";
       return MQTT2_SERVER_out($hash, pack("C*", 0x20, 2, 0, 1), $dump,
                                 sub{ CommandDelete(undef, $hash->{NAME}); });
     }
diff --git a/fhem/FHEM/10_ZWave.pm b/fhem/FHEM/10_ZWave.pm
index 837f9645d..c2e01f389 100644
--- a/fhem/FHEM/10_ZWave.pm
+++ b/fhem/FHEM/10_ZWave.pm
@@ -2921,7 +2921,7 @@ sub
 ZWave_configParseModel($;$)
 {
   my ($cfg, $my) = @_;
-  return if(!$my && ZWave_configParseModel($cfg, 1));
+  return if(!$my && ZWave_configParseModel($cfg, 1)); # first fhem_ then open...
 
   my $fn = $attr{global}{modpath}."/FHEM/lib/".($my ? "fhem_":"open").
                                 "zwave_deviceconfig.xml.gz";