Couldn't get Deco to connect after a power failure, couldn't get ISP address from Comast, I learned that the modem memory holds the information, so you have to unplug the coaxi cable and unplug both Deco and Modem, reconnect and let the Deco try to obtain an address with the coax off, this will force the Cable modem to release the old address.Unplug them again, reconnect the coax cable plug them both back in and you'll get a vaild address and everything will work again. 

ALAS I learned this too late, and before I attmpted that, i tried changing the main deco with a satellite, and then had to rest them and on and on and long story short NEVER DO THAT EVER!!! They come pre-configured and now i'm down 1 satellite because no matter what I do the same satellite, will connect, and then second anything tries to connect, it instantly disconnects, waits about 2 minutes and repeat. I have tried EVERYTHING and there's simply no fixing it. I might as well throw it in the trash, but thankfully I went to Costco so intead I will just swap this now misaligned system for a new pre-confuigured one. Super Annoying

Whomever at TP-link decided it was a good idea to give the customers less options when trying to solve a problem should be taken out back and shot immediately. My choices are too remove from app (failed), remove the entire network which also failed because, YOU CANNOT RESET THE DEVICE ... I've deleted the network, removed from the app, tapped reset for 1 second, and not a nano second longer as that will put it into recovery mode where it will sit for days not doing anything other than show a solid yellow light, You can reset, leave it off for 5 minutes at a time, multiple times and wait for a blue light to search/ find/ reconnect (also doesn't work) and the best part is after you've spent 35 minutes turning it on and off and pressing rest for only 1 second (which is idiotic BTW), it will automatically reconnect before you can do it manually, because your not really changing anything, your locked out, it's a ruse and it's absolutely RUINED this product. 

     I'm sure when changing main deco's the change in mac addresses alerted Comcast to something and now it's impossible to fix, they say to contact your ISP provider which is also STUPID. They are the ones making it difficult in the first place! They don't want you to be able to fix it. They want to send out their people and charge you $50 for doing nothing and solving nothing when they are now blocking the MAC address because they want us to use their stuff ,,, is there no one @ TP Link who can see the obvious? 

     All of this trouble, and disappointment because the power went out for 24 hours and now 1/3 of your product is a paperweight with an annoying solid yellow light. I was bragging about how well this product worked and as soon as I did ... disaster 

DO NOT CHANGE THE MAIN DECO ONCE YOU'VE COMPLETED THE ORIGINAL SET UP OR YOU"LL BE SORRY! 

It makes you wonder how many people have returned this product because of this exact same issue? How much money is lost in that process? Absolutely stupid