@Denis55 Bro delete the App Beta firmware and download the stable update from the google play store or apple store which is still better than this Beta

@Denis55 Try new beta version of Deco App 3.8.102 on Android.

@Denis55 Maybe you put your Satellite Deco far away from Main Deco. I also faced this issue with Deco M4 because satellite Deco can't get enough signals to always get online. Try to move it little...

@SayeemAhmed Bro 1.7.0 beta firmware is trash im not using it anymore im using 1.6.2

@David-TP This beta firmware of App is working perfectly fine for me better than previous beta firmware.

@Yoodog Latest firmware is 1.6.4 of (V2) on official website of TP-Link (US) you can update them manually.