Create a script in /jffs/scripts
called qos-start
with this content
#!/bin/sh
sed -i 's/tc filter add dev .*/tc filter add dev $DLIF parent ffff: protocol all prio 10 u32 match u32 0 0 flowid 1:1 action mirred egress redirect dev $MIF/g' /tmp/qos
Run it and it's done!
cat >/jffs/scripts/qos-start <<-EOF
#!/bin/sh
sed -i 's/tc filter add dev .*/tc filter add dev \$DLIF parent ffff: protocol all prio 10 u32 match u32 0 0 flowid 1:1 action mirred egress redirect dev \$MIF/g' /tmp/qos
EOF
chmod 755 /jffs/scripts/qos-start
service restart_qos
Source: https://www.snbforums.com/threads/cakeqos-not-limiting-download.93504/