Index: sources/gui/qml/components/HeaderBar.qml
===================================================================
diff -u -r0784febfc4f6b1bc4232dce72df22b93ac168685 -r80e196a153549a10b01ddc52fdd3c4f09d215da6
--- sources/gui/qml/components/HeaderBar.qml	(.../HeaderBar.qml)	(revision 0784febfc4f6b1bc4232dce72df22b93ac168685)
+++ sources/gui/qml/components/HeaderBar.qml	(.../HeaderBar.qml)	(revision 80e196a153549a10b01ddc52fdd3c4f09d215da6)
@@ -207,7 +207,7 @@
 
         IconButton { id  : _wifiButton
             iconSize        : Variables.headerIconDiameter
-            iconImageSource : "qrc:/images/iWifi"
+            iconImageSource : ! vDevice.wifiError ? "qrc:/images/iWifi" : "qrc:/images/iWifiError"
             extraSpace      : _headerButtonRow.spacing
 
             onPressed       : _headerbarWifi.openDialog(_wifiButton)