Wifi restart after network reconfig

NETWORKING SOLUTIONS
1

Hi,

I am wondering if this is normal behaviour, but every time, I reconfigure the WAN-network config on my RUTX50 (RUTX_R_00.07.12), e.g. make a manual SIM switch or switching to 4G only, my Wifi is temporarily disabled and re-enabled later on.

This is very irritating as I cant see what is going on and sometimes the Wifi reconnect from the clients take quite some time.

Here is an extract from my system log during one of the reconfigurations:

15540 Sat Mar  1 23:47:10 2025 kern.notice kernel: User "admin" changed Simcard configuration in "/network/mobile/general/cfg01aa0e" page
15541 Sat Mar  1 23:47:11 2025 daemon.info mobifd: Service reload initiated
15542 Sat Mar  1 23:47:11 2025 daemon.info mobifd: [gsm.modem0] Config reload initiated
15543 Sat Mar  1 23:47:11 2025 daemon.notice netifd: mob1s2a1 (9197): Stopping network mob1s2a1
15544 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1 (9197): Command failed: Not found
15545 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1 (9197): Stopping network on /dev/cdc-wdm0!
15546 Sat Mar  1 23:47:12 2025 daemon.notice netifd: Network device 'qmimux0' link is down
15547 Sat Mar  1 23:47:12 2025 daemon.notice netifd: Interface 'mob1s2a1_4' has link connectivity loss
15548 Sat Mar  1 23:47:12 2025 user.notice netifd: uqmi -s -d /dev/cdc-wdm0 -t 3000 --set-client-id wds,14 --stop-network 0xFFFFFFFF --autoconnect
15549 Sat Mar  1 23:47:12 2025 user.notice netifd: uqmi -s -d /dev/cdc-wdm0 -t 3000 --set-client-id wds,14 --release-client-id wds
15550 Sat Mar  1 23:47:12 2025 daemon.notice netifd: Interface 'mob1s2a1_4' is disabled
15551 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1 (9197): Releasing client-id 14 on /dev/cdc-wdm0
15552 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1 (9197): Command failed: Permission denied
15553 Sat Mar  1 23:47:12 2025 daemon.notice netifd: Interface 'mob1s2a1' is now down
15554 Sat Mar  1 23:47:12 2025 daemon.warn dnsmasq[26439]: no servers found in /tmp/resolv.conf.d/resolv.conf.auto, will retry
15555 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1_4 (26601): udhcpc: SIOCGIFINDEX: No such device
15556 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1_4 (26601): udhcpc: received SIGTERM
15557 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1_4 (26601): udhcpc: unicasting a release of 10.169.104.224 to 10.169.104.225
15558 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1_4 (26601): udhcpc: sending release
15559 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1_4 (26601): udhcpc: can't bind to interface qmimux0: No such device
15560 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1_4 (26601): udhcpc: bindtodevice: No such device
15561 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1_4 (26601): udhcpc: entering released state
15562 Sat Mar  1 23:47:12 2025 daemon.notice netifd: mob1s2a1_4 (26601): Command failed: Permission denied
15563 Sat Mar  1 23:47:12 2025 daemon.notice netifd: Interface 'mob1s2a1_4' is now down
15564 Sat Mar  1 23:47:13 2025 daemon.info dnsmasq[26439]: read /etc/hosts - 12 names
15565 Sat Mar  1 23:47:13 2025 daemon.info dnsmasq[26439]: read /tmp/hosts/dhcp.cfg01411c - 2 names
15566 Sat Mar  1 23:47:13 2025 daemon.info dnsmasq-dhcp[26439]: read /etc/ethers - 0 addresses
15567 Sat Mar  1 23:47:13 2025 daemon.notice hostapd: Set new config for phy phy0:
15568 Sat Mar  1 23:47:13 2025 daemon.notice hostapd: Remove interface 'phy0'
15569 Sat Mar  1 23:47:13 2025 daemon.notice hostapd: wlan0-1: interface state ENABLED->DISABLED
15570 Sat Mar  1 23:47:13 2025 daemon.notice hostapd: wlan0-2: AP-DISABLED
15571 Sat Mar  1 23:47:13 2025 daemon.notice hostapd: wlan0-2: CTRL-EVENT-TERMINATING

You see the wlan0-1: interface state ENABLED->DISABLED and AP-DISABLED messages. Is that normal or did I configure the router wrong?

Cheers,

Tobias

3

Hello,

When configuring the mobile WAN, the mobile service reloads, causing a temporary disconnection. Since your router’s WAN connection (in this case, the mob1s2a1 interface) goes offline, it loses internet access. As a result, it is unable to provide internet to WiFi clients during this time.
Once the router reconnects to the WAN and restores internet access, its LAN clients (including wireless clients) will be able to reconnect to the WiFi as well.

Hope this helps clarify the situation.

Best regards,

4

Hi Marija,

thank you for your reply. What I don’t understand is, that there might be a multitude of reasons for internet connections via WAN to fail. Like Provider block, no signal, broken antenna, you name it. And then the WiFi is not deactivated.

Additionally, as far as I can remember, this is a new “feature” that was introduced in one of the last firmware versions. I did not observe the issue before.

This is actually a problem for me, as applications (like MS Teams) might drop connections when the WiFi on the laptop goes down. It will not (immediately) drop the connection/call when the router was switching/reestablishing WAN/GSM.

Cheers,

Tobias

5

Hello,

We apologize for any inconvenience this issue has caused. Unfortunately, this is a known firmware-related issue, and our developers are aware of it and actively working on a resolution.

The fix will be implemented in a future firmware releases. However, I do not have an exact date for its availability. If I receive any updates, I will inform you.

We appreciate your understanding and patience.

Best regards,