Use 2 Wi-Fi WANs to Router and use LAN Ports for Network connections

Installing and Using OpenWrt
1

I have 2 Cable internets coming into my house since I work remote.

I have some spare routers with OpenWRT installed - 23.05.2 - and I want to use both Wi-Fi on the routers as WAN connections. I want to use the 5GHZ for 1 Internet, the 2.4GHZ for another internet, and then use the 4 LAN ports for wired connections to devices that will use either internet, depending if one is out - so I have 100% connection. Not entirely sure how I can achieve this.

I don't need it firewalled & I don't need to remote to the devices connected to the LAN ports.

I just want any device that is plugged into the LAN port to be able to use either internet if one of the Wi-Fi (wan internets) is not working, it will swap to the other internet automatically.

Is this achievable? Not even sure what to call this type of setup to start researching it.

Thank you for any help!

2

Why not connect your 2 internet connections via ethernet (instead of wifi) into your OpenWrt router? That would be the best performance and reliability.

You'll use a package called mwan3 and set it up with either load balancing or failover for your two internet connections.

3

I'm trying to not use wires since that location is across the house where the devices are.

I don't need wi-fi at that location, which is why I want the wi-fi connection for the WAN's and the LAN ports for the device connection.

4

It should be possible with two wwan connections and mwan3.

5

Thanks for the tip! I'll read up on mwan3.