Hello,

I'm looking into adding a backup internet using a ceullar SIM card.

My current setup looks like this

Fiber -> ISP router

ISP router -> Main Deco x60 (Ethernet)

Main Deco x60 -> Switch (Ethernet)

Switch -> Other Deco X60 (Ethernet)

Switch -> Other Deco X60 (Ethernet)

The Deco works as a WiFi router. I want to have some backup for the ISP Router.

In case the ISP router doesn't function properly, I would like to have a backup cellular router kick in.

I've seen a Deco x20 that does that, but apperantly it has to be the main deco. Wouldn't that be a problem?

I would like to hear your thoughts about this.

Thank you!

Lidan