wlcsm_create_nl_socket binding netlink socket error

[garycnew]

You won’t find anything.

@dave14305 As you referenced the source code in services.c (not closed source), are you suggesting that it's an unresolved issue?

 

[dave14305]

@dave14305 As you referenced the source code in services.c (not closed source), are you suggesting that it's an unresolved issue?

That code invokes a couple closed-source functions related to AiMesh and networkmap. I would just delete the dhcp-script line via the dnsmasq.postconf if it’s causing a problem for you. I don’t think it’s an essential function.

 

[garycnew]

That code invokes a couple closed-source functions related to AiMesh and networkmap. I would just delete the dhcp-script line via the dnsmasq.postconf if it’s causing a problem for you. I don’t think it’s an essential function.

@dave14305 A symptom of the related error is that local dns (192.168.0.1) fails, until I preform the remedy restart_dnsmasq.

 

[EmeraldDeer]

I have also experienced dhcpc_lease hanging every few days with error

_wlcsm_create_nl_socket:268: pid:2341 binding netlink socket error!!!

The lightest footprint workaround so far in my testing is sending a hangup signal to dhcpc_lease.
In the script replacement for the dnsmasq invocation of dhcpc_lease I use this:

if [ -f /opt/bin/timeout ]
then
        /opt/bin/timeout --kill-after=20 --signal=HUP --verbose 10 /sbin/dhcpc_lease "$@"
else
        /sbin/dhcpc_lease "$@"
fi

The timeout command is only available in Entware when the USB is mounted, so I hope it does not happen before that.
Instead of a hang I see this in the standard error output:

timeout: sending signal HUP to command '/sbin/dhcpc_lease'

 

[Viktor Jaep]

I have also experienced dhcpc_lease hanging every few days with error

_wlcsm_create_nl_socket:268: pid:2341 binding netlink socket error!!!

The lightest footprint workaround so far in my testing is sending a hangup signal to dhcpc_lease.
In the script replacement for the dnsmasq invocation of dhcpc_lease I use this:

if [ -f /opt/bin/timeout ]
then
        /opt/bin/timeout --kill-after=20 --signal=HUP --verbose 10 /sbin/dhcpc_lease "$@"
else
        /sbin/dhcpc_lease "$@"
fi

The timeout command is only available in Entware when the USB is mounted, so I hope it does not happen before that.
Instead of a hang I see this in the standard error output:

timeout: sending signal HUP to command '/sbin/dhcpc_lease'

If that's hanging, there's a good chance other things are hanging as well. I'd recommend running @Martinski's CheckStuckProcCmds.sh script every 30mins, and have it log to a file so you can keep an eye on its behavior. Once I start seeing these pop up on my router, that was a sign a reboot was needed... then I wouldn't see them again for another 3+ weeks.

 

[EmeraldDeer]

The CheckStuckProcCmds.sh script did not catch anything for 2 weeks.

The dhcpc_lease script was hanging a few times a day but my wrapper script was handling them successfully with just a kill -HUP.

=====================================================================
_wlcsm_create_nl_socket:268: pid:2319 binding netlink socket error!!!
timeout: sending signal HUP to command '/sbin/dhcpc_lease'
Sat Jan 17 2026 11:52:05 AM EST -0500
=====================================================================

But nvram commands began to hang 2 weeks in, so I have rebooted and reinstalled CheckStuckProcCmds.sh script in cron every 30 minutes.

2026-Jan-03 08:51:09 PM INFO: New CRON Job [#CheckStuckCmds#] was CREATED.
CRON: [*/30  *  *  *  *  /tmp/mnt/smb/share/dhcp/CheckStuckProcCmds.sh #CheckStuckCmds#]
2026-Jan-04 12:00:01 PM FOUND: [0]
2026-Jan-05 12:00:03 PM FOUND: [0]
2026-Jan-06 12:00:00 PM FOUND: [0]
2026-Jan-07 12:00:03 PM FOUND: [0]
2026-Jan-08 12:00:00 PM FOUND: [0]
2026-Jan-09 12:00:00 PM FOUND: [0]
2026-Jan-10 12:00:00 PM FOUND: [0]
2026-Jan-11 12:00:01 PM FOUND: [0]
2026-Jan-12 12:00:01 PM FOUND: [0]
2026-Jan-13 12:00:00 PM FOUND: [0]
2026-Jan-14 12:00:00 PM FOUND: [0]
2026-Jan-15 12:00:03 PM FOUND: [0]
2026-Jan-16 12:00:00 PM FOUND: [0]
2026-Jan-17 04:30:00 AM FOUND: [0] **=OK=**

2026-Jan-17 05:00:04 AM START_03706: [/tmp/mnt/smb/share/dhcp/CheckStuckProcCmds.sh]
2026-Jan-17 05:00:04 AM FOUND_03706: [1]
 2309  2297 HdB34266 S     3952  0.4   1  0.0 nvram get http_username
 2297     1 HdB34266 S     3424  0.3   1  0.0 {cru} /bin/sh /usr/sbin/cru l
2026-Jan-17 05:00:04 AM FOUND_03706: [0][ 2309  2297 HdB34266 S     3952  0.4   1  0.0 nvram get http_username]
2026-Jan-17 05:00:05 AM FOUND_03706: [1]
2026-Jan-17 05:00:05 AM EXIT_03706: OK.