I’ve been working on this for quite a while, but I just can’t get it to work properly.
I’m running a RUT240 with a German SIM card (signal strength around -72 dB) and a WiFi access point located right next to the router (signal strength 78%). Since the mobile connection is rather poor, I followed all the recommended steps to set the WAN priority:
Priority #1: wifi1
Priority #2: mob1
Priority #3: wan
I also set the Multi-WAN failover metric accordingly:
wifi1
mob1
wan
So in theory, it should prioritize the WiFi connection and only switch to mobile if WiFi goes down. However, it keeps switching from wifi1 to mob1 every 30–60 minutes, even though wifi1 is still marked as “UP.” It just stops using the WiFi connection altogether, and I can’t figure out why.
It’s driving me nuts — I’ve tried everything I can think of, but nothing works. I’m wondering if the issue might be related to the “rules” section in the Multi-WAN settings. Unfortunately, I couldn’t find any clear documentation on what those rules are for, or whether I need to configure them.
I’ll attach some screenshots of my current settings. If you have any idea what might be going wrong, I’d really appreciate your help!
Dear Matas, thanks for taking care of me. The modem is running the latest FW. I did as you told, the modem switched immediately to the backup connection, before it was connected via wifi1. now the speed seems to be even slower than before the setting when running via mob1. attached I’ll share my failover settings for mob1 & wifi1
Hmm.. I have a feeling that the Wi-Fi connection might be unstable, and that sometimes the pings just don’t go through, prompting the device to switch the failover on, and as a result, changing the interface.
Let’s try editing the failover configuration a little:
Change the reliability to a higher number, currently, you have 1, however, you’ve provided 3 hosts: 8.8.8.8, 1.1.1.1 and 9.9.9.9 - change it to 2 or 3.
We change Count to do more pings as well, let’s opt for 10 pings for example.
Up/Down values we can leave them as is, unless you’d like to increase them as well, I’d do no more than 5-6, we don’t need that many.
Do the same changes for each of these interfaces and monitor the results. My guess is that your Wi-Fi network, as mentioned earlier, is unstable and the device fails to ping it sometimes, resulting in the failover activating. By changing these settings and increasing the values, we’re giving the device more time to check the connection stability.
I would like to let you know that your configuration has been done correctly, and that there are no issues with it whatsoever. I believe the main factor is the Wi-Fi network being funny, and some pings just simply don’t go through, triggering the failover.
Thanks! So far so good, I’m sure this is the right way, but still it’s changing to failover once in a while for exactly 10 seconds. How can I be even more gentle with the settings or is there something else I could change in order to avoid the failover (only when really someone cut the wire)?
And is there a way of getting a more detailed log file so figure out what exactly triggers the failover?
To answer your question, I’d suggest playing around with the Count and Up/Down values, try increasing them by a little (maybe +2-3) and see if that helps. Case in point is that the Wi-Fi network seems to be stuttering for some reason, going down and up, triggering the failover, perhaps you would have to troubleshoot the access point you’re connecting to as well to see if there’s anything wrong with it.
