@David-TP Well as usual I guess the deafening silence says it all. I have come to expect nothing less. Thanks for nothing. Time to head for the Netgear pages to see what they can offer me in the way...

@David-TP Got it working again, but the only way I can get it to work is to use one of the M5 Decos as the Main Deco. Hardly ideal as it's not as required by the list that wants the X55 first, plus...

@David-TP I've made the following changes: Removed the Network and restarted all the Decos. Recreated the Network using an alternative X55 as the Main Deco in case the original Main Deco was faulty....

Main Deco at 100% processor constantly also. if anyone at TP-link is listening?

I read this thread and am worried. I'm about to trash my Deco system too. I already returned a bunch of Kasa smart products to Amazon for a refund, this due solely to lack of customer support. I...

Down to 2 Decos now.