Struggling with my setup....I have one bulb L510B in my lounge, trying to set up another upstairs. It says connected, the WiFi is strong but it doesn't seem to be happy about something......I go to the WiFi settings and it has a lightbulb on there but only the downstairs one. No idea why this silly thing is not working......why does it say  connected if it clearly isn't connected.   Any ideas anyone? Help before I lose the plot!