SQM Randomly stops working

[nivliw97]

Router: Technicolor Tim Hub DGA4132
Firmware: LuCI openwrt-18.06 branch (git-20.155.55668-a972bdb) / OpenWrt SNAPSHOT r14144-e2ae576c18

After the router is booted up (or rebooted), SQM doesn't work. I have to go into Startup and restart the sqm service for it to start working. The SQM start and stop logs don't seem show anything specific to me, however, i'll post it anyways

Also, it stops working after a while (randomly). For example, I powered up the router in morning, then manually restarted the sqm service. It was working fine. In the afternoon, on a whim, I ran a speed test , and found out SQM wasn't working. I had to restart the service again.

Why is this happening? I have "sqm-scripts" and "luci-app-sqm" installed.

Thank you

Sat Aug 24 19:16:33 CEST 2024: Starting. Starting SQM script: simplest.qos on wanptm0, in: 55000 Kbps, out: 18000 Kbps Failed to find act_ipt. Maybe it is a built in module ? Failed to find sch_fq_codel. Maybe it is a built in module ? Failed to find sch_ingress. Maybe it is a built in module ? Failed to find act_mirred. Maybe it is a built in module ? Failed to find cls_fw. Maybe it is a built in module ? Failed to find cls_u32. Maybe it is a built in module ? /sbin/ip link add name TMP_IFB_4_SQM type ifb /usr/sbin/tc qdisc replace dev TMP_IFB_4_SQM root htb QDISC htb is useable. /sbin/ip link set dev TMP_IFB_4_SQM down /sbin/ip link delete TMP_IFB_4_SQM type ifb /sbin/ip link add name TMP_IFB_4_SQM type ifb /usr/sbin/tc qdisc replace dev TMP_IFB_4_SQM root fq_codel QDISC fq_codel is useable. /sbin/ip link set dev TMP_IFB_4_SQM down /sbin/ip link delete TMP_IFB_4_SQM type ifb Starting simplest.qos ifb associated with interface wanptm0: Currently no ifb is associated with wanptm0, this is normal during starting of the sqm system. /sbin/ip link add name ifb4wanptm0 type ifb IFACE: wanptm0 MTU: 1500 HTB_QUANTUM (linear): 1500, BANDWIDTH: 18000 IFACE: wanptm0 MTU: 1500 BURST: , BANDWIDTH: 18000 Default Burst, HTB will use MTU plus shipping and handling /usr/sbin/tc qdisc del dev wanptm0 root RTNETLINK answers: No such file or directory LLA: default link layer adjustment method for !cake is tc_stab /usr/sbin/tc qdisc add dev wanptm0 root handle 1: htb default 10 /usr/sbin/tc class add dev wanptm0 parent 1: classid 1:1 htb quantum 1500 rate 18000kbit ceil 18000kbit /usr/sbin/tc class add dev wanptm0 parent 1:1 classid 1:10 htb quantum 1500 rate 18000kbit ceil 18000kbit prio 0 get_limit: CURLIMIT: 1001 get_target defaulting to auto. get_ECN: ECN CURECN: ecn IECN: ECN EECN: ECN /usr/sbin/tc qdisc add dev wanptm0 parent 1:10 handle 110: fq_codel limit 1001 target 5000us interval 100000us ecn flows 1024 egress shaping activated /sbin/ip link add name TMP_IFB_4_SQM type ifb /usr/sbin/tc qdisc replace dev TMP_IFB_4_SQM ingress QDISC ingress is useable. /sbin/ip link set dev TMP_IFB_4_SQM down /sbin/ip link delete TMP_IFB_4_SQM type ifb ingress /usr/sbin/tc qdisc del dev wanptm0 handle ffff: ingress RTNETLINK answers: Invalid argument /usr/sbin/tc qdisc add dev wanptm0 handle ffff: ingress IFACE: wanptm0 MTU: 1500 HTB_QUANTUM (linear): 6000, BANDWIDTH: 55000 IFACE: wanptm0 MTU: 1500 BURST: 4500, BANDWIDTH: 55000 /usr/sbin/tc qdisc del dev ifb4wanptm0 root RTNETLINK answers: No such file or directory LLA: default link layer adjustment method for !cake is tc_stab /usr/sbin/tc qdisc add dev ifb4wanptm0 root handle 1: htb default 10 /usr/sbin/tc class add dev ifb4wanptm0 parent 1: classid 1:1 htb quantum 6000 rate 55000kbit ceil 55000kbit burst 4500 cburst 4500 /usr/sbin/tc class add dev ifb4wanptm0 parent 1:1 classid 1:10 htb quantum 6000 rate 55000kbit ceil 55000kbit burst 4500 cburst 4500 prio 0 get_limit: CURLIMIT: 1001 get_target defaulting to auto. get_ECN: ECN CURECN: ecn IECN: ECN EECN: ECN /usr/sbin/tc qdisc add dev ifb4wanptm0 parent 1:10 handle 110: fq_codel limit 1001 target 5000us interval 100000us ecn flows 1024 /sbin/ip link set dev ifb4wanptm0 up /usr/sbin/tc filter add dev wanptm0 parent ffff: protocol all prio 10 u32 match u32 0 0 flowid 1:1 action mirred egress redirect dev ifb4wanptm0 ingress shaping activated simplest.qos was started on wanptm0 successfully

I also tried asking on openwrt forum, but since this isn't an official openwrt release they told me to ask me here.