Newer firmware adds automatic fallback to a mobile dongle or another FRITZ!Box, which materially improves resilience when the primary connection fails.
Pros: long-range speed, whole-home coverage
Cons: XGS-PON support, Matter support
Best Wi-Fi Routers for WAN failover
With the optional cradle, the M7 can automatically take over when fixed broadband fails, creating a strong backup-internet setup.
Pros: Wi-Fi standard support, web interface setup
Cons: 160 MHz support, long-range speed
Multi-WAN failover is one of the most useful travel features, switching among Ethernet, repeater Wi‑Fi and tethered cellular sources. It is repeatedly praised for keeping remote-work connections resilient.
Pros: Wi-Fi speed, close-range speed
Cons: mesh performance, seamless handoff