In order to connect your friendship lamp to the others in your group, you'll need a GroupID.

The GroupID was sent to you in your email confirmation.  (If you can't see this, check your spam/junk folder)

You can check and reenter your group ID by holding down on the touch pad for about 30 seconds. It will cycle through the colors multiple times and finally settle on a dim red. 

You will then be able to re-enter the WiFi setup mode and change your group ID. 

Please make sure the groupID is the same on all lamps.

If you can't find yours - it's easy to generate a new one.  You can do that here: