I recently purchased a 2-pack of KL125 bulbs.  The 2 bulbs are on the same circuit, controlled by 1 light switch.  I followed the process, added first device to the network successfully, and can control.  As I repeated for the 2nd device, once it was on the network, the first device dropped and is not 'reachable'.  I deleted, re-added and can connect to it but the 1st device, once active, is no longer reachable.  I've repeated the process numerous times, but it only seems 1 device at a time can be on the network.  How do I get 2 devices to communicate on the network?  If I can't get them both to work simultaneously, there is no value in them.  

I also have a smart outlet, KP115, which works just fine.  

Thanks for anyone's help.