@TP-Link Thank you. 

But http://tplinkdeco.net does not work. 

This site can’t be reached

tplinkdeco.net took too long to respond.

ERR_CONNECTION_TIMED_OUT

Is there any way to access the main Deco, while I am not on the network (HH-Deco). I am on the guest network, HH-Deco_guest. :-D

TP-Link wrote

@Deco_M9_Plus 

Good day,

Thank you very much for your time and patience.

Ahh, it is quite a long log:-D

and If you want to log into the main Deco, you might need to use http://tplinkdeco.net ;

Thank you very much.