Connecting Problems with 2 Ceiling-lights. To Close together?

Hi

I have two ceilinglights with about 3 Meter distance to each other.
Spent hours now, to connect both to my iphone-app!

always, when one is connected - the other disconnects.
No chance to get them both. (and maybe pair them)

What should i do?

each functions with there remote (no issiues here)
if one is unpluged - the other has no problems to connect to iphone.

Do you mean when you turn on one of the them, the other one will be offline?

If so, could you please wait couple mins and check if the other one could back online?