Fix Network Redundancy Failure
If failover mechanisms fail despite proper configuration, the issue may be hardware-related. Check for Hardware Failures: lua CopyEdit show interfaces status Replace Faulty Network Interfaces or Modules. Test with a Different Router or Switch. If redundancy fails even with new hardware, consult vendor support for deeper troubleshooting .
The Ultimate Guide to Industrial Failover Routers Setup & Troubleshooting

Master industrial failover router setup & troubleshooting with our ultimate guide. Ensure uptime & network resilience today!
Using Puli What I did was plug in my Modem into WAN, and then plug my router into LAN, the device automatically set up in what I thought was failover mode. I verified that traffic was going through my home ISP. I disconnected power to my modem and the device dropped down to Cellular as expected.

3G4G5G Backup Failover on Deco 4G5G Gateway
How the Failover works After enabling Backup under router mode, it will use Ethernet WAN (or DSL WAN on Deco X73-DSL) as the main internet, when main WAN fails, it will failover to 3G/4G Backup automatically, and when Ethernet WAN recovers, it will also switch back to the main internet automatically.
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