I have a simple setup: 1 Vodafone modem and 2 Deco X20.

I did my first configuration in November 2022 and it was working normally.

However, I noticed my internet was slowing down so I did the normal procedure to reset the modem but didn't work.

Both of my Decos have the green light but in the app, the second one (slave) was failing with the message "Office is offline".

So my nightmare began, I reset everything I have a lot of IoT devices (18 in total) so I lost almost 1 day replugging everything but the second Deco doesn't stay online for more than 10min. If I turn it off and turn it on and it goes like :

1. yellow light, starting up
2. blinking red light
3. yellow light again
4. green light, everything works beautifully
5. *....wait for 10 minutes...*
6. *keep the green light but the app shows fail and the deco is offline again*

The main Deco is normal, and working perfectly!