diff --git a/fhem/FHEM/30_HUEBridge.pm b/fhem/FHEM/30_HUEBridge.pm
index fb1e1989b..41e47df1b 100644
--- a/fhem/FHEM/30_HUEBridge.pm
+++ b/fhem/FHEM/30_HUEBridge.pm
@@ -26,6 +26,7 @@ sub HUEBridge_Initialize($)
 
   #Consumer
   $hash->{DefFn}    = "HUEBridge_Define";
+  $hash->{NOTIFYDEV} = "global";
   $hash->{NotifyFn} = "HUEBridge_Notify";
   $hash->{SetFn}    = "HUEBridge_Set";
   $hash->{GetFn}    = "HUEBridge_Get";
@@ -91,7 +92,6 @@ HUEBridge_Define($$)
   }
 
   if( $init_done ) {
-    delete $modules{$hash->{TYPE}}{NotifyFn};
     HUEBridge_OpenDev( $hash );
   }
 
@@ -109,13 +109,7 @@ HUEBridge_Notify($$)
 
   return if($attr{$name} && $attr{$name}{disable});
 
-  delete $modules{$type}{NotifyFn};
-  delete $hash->{NTFY_ORDER} if($hash->{NTFY_ORDER});
-
-  foreach my $d (keys %defs) {
-    next if($defs{$d}{TYPE} ne "$type");
-    HUEBridge_OpenDev($defs{$d});
-  }
+  HUEBridge_OpenDev($hash);
 
   return undef;
 }
diff --git a/fhem/FHEM/32_mailcheck.pm b/fhem/FHEM/32_mailcheck.pm
index 8e731888c..88a3b841b 100755
--- a/fhem/FHEM/32_mailcheck.pm
+++ b/fhem/FHEM/32_mailcheck.pm
@@ -32,6 +32,7 @@ mailcheck_Initialize($)
   $hash->{ReadFn}   = "mailcheck_Read";
 
   $hash->{DefFn}    = "mailcheck_Define";
+  $hash->{NOTIFYDEV} = "global";
   $hash->{NotifyFn} = "mailcheck_Notify";
   $hash->{UndefFn}  = "mailcheck_Undefine";
   #$hash->{SetFn}    = "mailcheck_Set";
@@ -80,7 +81,6 @@ mailcheck_Define($$)
   $hash->{HAS_MIME} = $mailcheck_hasMIME;
 
   if( $init_done ) {
-    delete $modules{mailcheck}->{NotifyFn};
     mailcheck_Disconnect($hash);
     mailcheck_Connect($hash);
   } elsif( $hash->{STATE} ne "???" ) {
@@ -98,12 +98,7 @@ mailcheck_Notify($$)
   return if($dev->{NAME} ne "global");
   return if(!grep(m/^INITIALIZED|REREADCFG$/, @{$dev->{CHANGED}}));
 
-  delete $modules{$hash->{TYPE}}->{NotifyFn};
-
-  foreach my $d (keys %defs) {
-    next if($defs{$d}{TYPE} ne $hash->{TYPE});
-    mailcheck_Connect($defs{$d});
-  }
+  mailcheck_Connect($hash);
 }
 
 sub
diff --git a/fhem/FHEM/32_withings.pm b/fhem/FHEM/32_withings.pm
index 99ebad8ef..5bc5ce2c7 100644
--- a/fhem/FHEM/32_withings.pm
+++ b/fhem/FHEM/32_withings.pm
@@ -40,6 +40,7 @@ withings_Initialize($)
   my ($hash) = @_;
 
   $hash->{DefFn}    = "withings_Define";
+  $hash->{NOTIFYDEV} = "global";
   $hash->{NotifyFn} = "withings_Notify";
   $hash->{UndefFn}  = "withings_Undefine";
   #$hash->{SetFn}    = "withings_Set";
@@ -117,7 +118,6 @@ withings_Define($$)
   $hash->{STATE} = "Initialized";
 
   if( $init_done ) {
-    delete $modules{withings}->{NotifyFn};
     withings_initUser($hash) if( $hash->{SUBTYPE} eq "USER" );
     withings_connect($hash) if( $hash->{SUBTYPE} eq "ACCOUNT" );
     withings_initDevice($hash) if( $hash->{SUBTYPE} eq "DEVICE" );
@@ -134,14 +134,9 @@ withings_Notify($$)
   return if($dev->{NAME} ne "global");
   return if(!grep(m/^INITIALIZED|REREADCFG$/, @{$dev->{CHANGED}}));
 
-  delete $modules{$hash->{TYPE}}->{NotifyFn};
-
-  foreach my $d (keys %defs) {
-    next if($defs{$d}{TYPE} ne $hash->{TYPE});
-    withings_initUser($defs{$d}) if( $defs{$d}->{SUBTYPE} eq "USER" );
-    withings_connect($defs{$d}) if( $defs{$d}->{SUBTYPE} eq "ACCOUNT" );
-    withings_initDevice($defs{$d}) if( $defs{$d}->{SUBTYPE} eq "DEVICE" );
-  }
+  withings_initUser($hash) if( $hash->{SUBTYPE} eq "USER" );
+  withings_connect($hash) if( $hash->{SUBTYPE} eq "ACCOUNT" );
+  withings_initDevice($hash) if( $hash->{SUBTYPE} eq "DEVICE" );
 }
 
 sub
diff --git a/fhem/FHEM/38_CO20.pm b/fhem/FHEM/38_CO20.pm
index b46be86c4..4b9be53fc 100755
--- a/fhem/FHEM/38_CO20.pm
+++ b/fhem/FHEM/38_CO20.pm
@@ -16,6 +16,7 @@ CO20_Initialize($)
   my ($hash) = @_;
 
   $hash->{DefFn}    = "CO20_Define";
+  $hash->{NOTIFYDEV} = "global";
   $hash->{NotifyFn} = "CO20_Notify";
   $hash->{UndefFn}  = "CO20_Undefine";
   #$hash->{SetFn}    = "CO20_Set";
@@ -47,7 +48,6 @@ CO20_Define($$)
   $hash->{NAME} = $name;
 
   if( $init_done ) {
-    delete $modules{CO20}->{NotifyFn};
     CO20_Disconnect($hash);
     CO20_Connect($hash);
   } elsif( $hash->{STATE} ne "???" ) {
@@ -62,14 +62,10 @@ CO20_Notify($$)
 {
   my ($hash,$dev) = @_;
 
-  if( grep(m/^INITIALIZED$/, @{$dev->{CHANGED}}) ) {
-    delete $modules{CO20}->{NotifyFn};
+  return if($dev->{NAME} ne "global");
+  return if(!grep(m/^INITIALIZED|REREADCFG$/, @{$dev->{CHANGED}}));
 
-    foreach my $d (keys %defs) {
-      next if($defs{$d}{TYPE} ne "CO20");
-      CO20_Connect($defs{$d});
-    }
-  }
+  CO20_Connect($hash);
 }
 
 my $VENDOR = 0x03eb;