@ImtiazAli I tried. I connected it with cable to the main deco and upload the firmware from the web and it's not working. im getting: operation succeed and nothing happen.

Hi, I have 3 pack of Deco m5, 2 of them work fine with firmware version 1.6.5 i had another one in my storage and decided to connect it after few years, it has firmware version 1.1.5. I succeed to...

Hey Kevin. Hope to see it soon through the app. Thank you for the quick response! :)

Hey Kevin, Thanks for you response, I already solved it and wrote it in different post Update firmware of slave deco tnx :)

tnx, i'll try it! :) But I still think TP-Link should add this feature to the app + add this situation to the troubleshooting.

So I tried to set up my slave deco ‏and even I had a stable ‏blue light I couldn't have a good wifi signal. I tried to remove the slave Deco and connect it again but it still didn't work. I tried to...