I have an issue with my router setup that I need help with. The problem is that I use a LAN cable connected to the WAN interface. When the LAN cable gets disconnected or stops working for some reason, and after 2–3 minutes it reconnects, the router automatically switches to the mobile connection using the SIM card for internet. However, when the WAN interface is available again, the router does not switch back to the WAN connection. Instead, it stays connected to the mobile data, which is a bit annoying
I’ve tested the failover functionality on the RUT956 with the same firmware version you are using, and everything worked as expected. When the wired WAN (wan) connection is lost, the router automatically switches to the mobile (mob1s1a1) connection. Once the primary WAN interface is available again, the router switches back to it seamlessly.
Please note that failover functionality is not enabled by default. To ensure it works properly, you’ll need to log in to the router’s WebUI and follow these steps:
Navigate to Network → Failover.
Enable both the WAN and mob1s1a1 interfaces.
Press Save & Apply.
This configuration should allow the failover to work as expected. Additionally, more helpful information can be found on our wiki page: RUT956 Failover.
If you need any further assistance or have additional questions – feel free to reach out.
I have now enabled both ‘wan’ and ‘mob1s1a1’, but I see two additional options. Is it possible to remove these other two options so that only the main options, ‘wan’ and ‘mob1s1a1’, remain?
Yes, it is possible to remove the other two options. The mob1s2a1 is created by default and represents the second mobile WAN interface (SIM card 2), and wan1 is likely a manually created interface. You can delete them by navigating to Network → WAN in the router’s WebUI and pressing “Delete” on the desired interface.
I recommend keeping the mob1s2a1 configuration, as deleting it will prevent internet access if a SIM card is inserted in the second SIM slot. However, if you leave both interfaces as they are and don’t enable them, they won’t impact Failover functionality. It is enough to keep only the wan and mob1s1a1 interfaces enabled for Failover to work as expected.
