thank you for your experience. i have a router hooked to my cable and MAC desktop that has wi/fi somehow i thought i could check the tank from my iPhone while i was away from home. still working on that.
I have a wi/fi controller for my Current USA light in addition to the icecap. i don't seem to have interference there. My other Current lights are remote controlled not wi/fi, so no interference there. I was under the impression that i would be able to run an older pump through the dual controller while running the single 4K from it too. Are you using the dual for a 2K, or two 2K pumps?
Do you use two Icecap controllers in your LAN? I could see where that could cause the same type of problems that two radio controlled cars, or aircraft would have, if they are on the same channel. Same brand same frequency settings. If so, there is probably a solution for that.
I bought a 2K pump only, on sale. I will let you know how it goes.