Got it working. My solution..... Hope this helps anyone else in the same predicament. Whole thing took me a couple of hours, but better than setting up the Deco's again. First thing to note is that...

Even weirder. Kept trying and plugged into each of the X55 ethernet ports. Second time round on port 1 it connects and sets up. Fails to copy network information from S7 to X55. So will try again....

Thanks @Alexandre. @Marvin_S Unfortunately that is not working either. It is weird, the blue light on the Deco X55 is flashing but the Deco app cannot find it. From what I can see the Deco is not...

Hi I have a S7/S4 mesh network I have bought 3 X55s S7 is currently my main deco Trying to add the X55 as the main but it is not being recognised by the app Looks like it is not picking up an IP...

@Ollieoos Thanks. Came here for this exact problem. Only since the latest firmware update. Set duration to same as ringtone now. Now working for me Would have been good if Tapo gave a notification...

@Wayne-TP That is not really getting at what OP has raised though. First thing in the morning it is random and after that they all light simultaneously. That sounds more like bulbs have gone to sleep...