Here is the output from my router, hope it'll help. Though it seems that the hardware is too weak.
cat /etc/config/sqm
cat /etc/config/sqm
config queue 'eth1'
option qdisc_advanced '0'
option debug_logging '0'
option verbosity '0'
option qdisc 'cake'
option script 'piece_of_cake.qos'
option download '50000'
option upload '2450'
option enabled '1'
option linklayer 'ethernet'
option overhead '8'
option interface 'eth0.2'
config queue
option debug_logging '0'
option linklayer 'none'
option enabled '1'
option verbosity '0'
option qdisc 'cake'
option script 'piece_of_cake.qos'
option qdisc_advanced '0'
option interface 'br-guest_lan'
option download '500'
option upload '5000'
tc -d qdisc
tc -d qdisc
qdisc noqueue 0: dev lo root refcnt 2
qdisc fq_codel 0: dev eth0 root refcnt 2 limit 10240p flows 1024 quantum 1514 target 5.0ms interval 100.0ms memory_limit 4Mb ecn
qdisc hfsc 1: dev ifb0 root refcnt 2 default 30
qdisc fq_codel 400: dev ifb0 parent 1:40 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
qdisc fq_codel 100: dev ifb0 parent 1:10 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
qdisc fq_codel 200: dev ifb0 parent 1:20 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
qdisc fq_codel 300: dev ifb0 parent 1:30 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
qdisc noqueue 0: dev br-lan root refcnt 2
qdisc cake 8022: dev eth0.2 root refcnt 2 bandwidth 2450Kbit besteffort triple-isolate split-gso rtt 100.0ms noatm overhead 8
qdisc ingress ffff: dev eth0.2 parent ffff:fff1 ----------------
qdisc hfsc 1: dev pppoe-wan root refcnt 2 default 30
qdisc fq_codel 400: dev pppoe-wan parent 1:40 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
qdisc fq_codel 100: dev pppoe-wan parent 1:10 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
qdisc fq_codel 200: dev pppoe-wan parent 1:20 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
qdisc fq_codel 300: dev pppoe-wan parent 1:30 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
qdisc ingress ffff: dev pppoe-wan parent ffff:fff1 ----------------
qdisc cake 8025: dev br-guest_lan root refcnt 2 bandwidth 5Mbit besteffort triple-isolate split-gso rtt 100.0ms raw overhead 0
qdisc ingress ffff: dev br-guest_lan parent ffff:fff1 ----------------
qdisc noqueue 0: dev wlan1 root refcnt 2
qdisc noqueue 0: dev wlan1-1 root refcnt 2
qdisc cake 8023: dev ifb4eth0.2 root refcnt 2 bandwidth 50Mbit besteffort triple-isolate wash split-gso rtt 100.0ms noatm overhead 8
qdisc cake 8026: dev ifb4r-guest_lan root refcnt 2 bandwidth 500Kbit besteffort triple-isolate wash split-gso rtt 100.0ms raw overhead 0
qdisc noqueue 0: dev eth0.3 root refcnt 2
qdisc noqueue 0: dev eth0.1 root refcnt 2
tc -s qdisc
tc -s qdisc
qdisc noqueue 0: dev lo root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc fq_codel 0: dev eth0 root refcnt 2 limit 10240p flows 1024 quantum 1514 target 5.0ms interval 100.0ms memory_limit 4Mb ecn
Sent 35663823532 bytes 52325566 pkt (dropped 0, overlimits 0 requeues 25)
backlog 0b 0p requeues 25
maxpacket 1514 drop_overlimit 0 new_flow_count 186 ecn_mark 0
new_flows_len 0 old_flows_len 0
qdisc hfsc 1: dev ifb0 root refcnt 2 default 30
Sent 38659177611 bytes 32234466 pkt (dropped 49938, overlimits 36320698 requeues 0)
backlog 0b 0p requeues 0
qdisc fq_codel 400: dev ifb0 parent 1:40 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 493590892 bytes 479683 pkt (dropped 1252, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 59131 ecn_mark 0
new_flows_len 0 old_flows_len 1
qdisc fq_codel 100: dev ifb0 parent 1:10 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 4276635 bytes 44813 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1470 drop_overlimit 0 new_flow_count 8292 ecn_mark 0
new_flows_len 0 old_flows_len 1
qdisc fq_codel 200: dev ifb0 parent 1:20 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 29864256107 bytes 23175660 pkt (dropped 45715, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 2853873 ecn_mark 0
new_flows_len 1 old_flows_len 1
qdisc fq_codel 300: dev ifb0 parent 1:30 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 8297053977 bytes 8534310 pkt (dropped 2971, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 2061176 ecn_mark 0
new_flows_len 1 old_flows_len 1
qdisc noqueue 0: dev br-lan root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc cake 8022: dev eth0.2 root refcnt 2 bandwidth 2450Kbit besteffort triple-isolate split-gso rtt 100.0ms noatm overhead 8
Sent 2038731096 bytes 20079893 pkt (dropped 221230, overlimits 11774255 requeues 0)
backlog 0b 0p requeues 0
memory used: 999744b of 4Mb
capacity estimate: 2450Kbit
min/max network layer size: 16 / 1500
min/max overhead-adjusted size: 24 / 1508
average network hdr offset: 14
Tin 0
thresh 2450Kbit
target 7.4ms
interval 102.4ms
pk_delay 854us
av_delay 171us
sp_delay 11us
backlog 0b
pkts 20301123
bytes 2056464705
way_inds 1152918
way_miss 506554
way_cols 0
drops 221230
marks 0
ack_drop 0
sp_flows 0
bk_flows 1
un_flows 0
max_len 1514
quantum 300
qdisc ingress ffff: dev eth0.2 parent ffff:fff1 ----------------
Sent 34437160227 bytes 29375788 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc hfsc 1: dev pppoe-wan root refcnt 2 default 30
Sent 2336422020 bytes 22230565 pkt (dropped 21353, overlimits 9207025 requeues 0)
backlog 0b 0p requeues 0
qdisc fq_codel 400: dev pppoe-wan parent 1:40 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 64787256 bytes 379798 pkt (dropped 1874, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 105462 ecn_mark 0
new_flows_len 0 old_flows_len 2
qdisc fq_codel 100: dev pppoe-wan parent 1:10 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 6297047 bytes 54208 pkt (dropped 11, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 576 drop_overlimit 0 new_flow_count 11519 ecn_mark 0
new_flows_len 1 old_flows_len 2
qdisc fq_codel 200: dev pppoe-wan parent 1:20 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 1741302740 bytes 16005322 pkt (dropped 3674, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 6234000 ecn_mark 0
new_flows_len 1 old_flows_len 1
qdisc fq_codel 300: dev pppoe-wan parent 1:30 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 524034977 bytes 5791237 pkt (dropped 15794, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 1597820 ecn_mark 0
new_flows_len 0 old_flows_len 1
qdisc ingress ffff: dev pppoe-wan parent ffff:fff1 ----------------
Sent 38732922571 bytes 32284404 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc cake 8025: dev br-guest_lan root refcnt 2 bandwidth 5Mbit besteffort triple-isolate split-gso rtt 100.0ms raw overhead 0
Sent 242512060 bytes 236985 pkt (dropped 5319, overlimits 333338 requeues 0)
backlog 0b 0p requeues 0
memory used: 369024b of 4Mb
capacity estimate: 5Mbit
min/max network layer size: 42 / 1514
min/max overhead-adjusted size: 42 / 1514
average network hdr offset: 14
Tin 0
thresh 5Mbit
target 5.0ms
interval 100.0ms
pk_delay 11.5ms
av_delay 2.0ms
sp_delay 6us
backlog 0b
pkts 242304
bytes 250095210
way_inds 2367
way_miss 14431
way_cols 2
drops 5319
marks 10
ack_drop 0
sp_flows 0
bk_flows 1
un_flows 0
max_len 1514
quantum 300
qdisc ingress ffff: dev br-guest_lan parent ffff:fff1 ----------------
Sent 35414143 bytes 194874 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc noqueue 0: dev wlan1 root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc noqueue 0: dev wlan1-1 root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc cake 8023: dev ifb4eth0.2 root refcnt 2 bandwidth 50Mbit besteffort triple-isolate wash split-gso rtt 100.0ms noatm overhead 8
Sent 34372204964 bytes 29059322 pkt (dropped 316466, overlimits 37251919 requeues 0)
backlog 0b 0p requeues 0
memory used: 716224b of 4Mb
capacity estimate: 50Mbit
min/max network layer size: 46 / 1500
min/max overhead-adjusted size: 54 / 1508
average network hdr offset: 14
Tin 0
thresh 50Mbit
target 5.0ms
interval 100.0ms
pk_delay 2.9ms
av_delay 453us
sp_delay 7us
backlog 0b
pkts 29375788
bytes 34848421259
way_inds 1727051
way_miss 472935
way_cols 0
drops 316466
marks 0
ack_drop 0
sp_flows 2
bk_flows 1
un_flows 0
max_len 1514
quantum 1514
qdisc cake 8026: dev ifb4r-guest_lan root refcnt 2 bandwidth 500Kbit besteffort triple-isolate wash split-gso rtt 100.0ms raw overhead 0
Sent 36243899 bytes 193114 pkt (dropped 1760, overlimits 208221 requeues 0)
backlog 0b 0p requeues 0
memory used: 300608b of 4Mb
capacity estimate: 500Kbit
min/max network layer size: 20 / 1514
min/max overhead-adjusted size: 20 / 1514
average network hdr offset: 14
Tin 0
thresh 500Kbit
target 36.3ms
interval 131.3ms
pk_delay 34.0ms
av_delay 2.8ms
sp_delay 13us
backlog 0b
pkts 194874
bytes 38142365
way_inds 2550
way_miss 15107
way_cols 0
drops 1760
marks 45
ack_drop 0
sp_flows 0
bk_flows 1
un_flows 0
max_len 1514
quantum 300
qdisc noqueue 0: dev eth0.3 root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc noqueue 0: dev eth0.1 root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
tc -s qdisc - While torrenting
tc -s qdisc
qdisc noqueue 0: dev lo root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc fq_codel 0: dev eth0 root refcnt 2 limit 10240p flows 1024 quantum 1514 target 5.0ms interval 100.0ms memory_limit 4Mb ecn
Sent 36573568031 bytes 53776180 pkt (dropped 0, overlimits 0 requeues 26)
backlog 0b 0p requeues 26
maxpacket 1514 drop_overlimit 0 new_flow_count 192 ecn_mark 0
new_flows_len 0 old_flows_len 0
qdisc hfsc 1: dev ifb0 root refcnt 2 default 30
Sent 39507616304 bytes 33094807 pkt (dropped 50304, overlimits 37175362 requeues 0)
backlog 17906b 15p requeues 0
qdisc fq_codel 400: dev ifb0 parent 1:40 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 493590892 bytes 479683 pkt (dropped 1252, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 59131 ecn_mark 0
new_flows_len 0 old_flows_len 1
qdisc fq_codel 100: dev ifb0 parent 1:10 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 4276635 bytes 44813 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1470 drop_overlimit 0 new_flow_count 8292 ecn_mark 0
new_flows_len 0 old_flows_len 1
qdisc fq_codel 200: dev ifb0 parent 1:20 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 29864256107 bytes 23175660 pkt (dropped 45715, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 2853873 ecn_mark 0
new_flows_len 1 old_flows_len 1
qdisc fq_codel 300: dev ifb0 parent 1:30 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 9145492670 bytes 9394651 pkt (dropped 3337, overlimits 0 requeues 0)
backlog 17906b 15p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 2428674 ecn_mark 0 memory_used 29760
new_flows_len 1 old_flows_len 32
qdisc noqueue 0: dev br-lan root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc cake 8022: dev eth0.2 root refcnt 2 bandwidth 2450Kbit besteffort triple-isolate split-gso rtt 100.0ms noatm overhead 8
Sent 2091089968 bytes 20734845 pkt (dropped 298924, overlimits 12683545 requeues 0)
backlog 13133b 168p requeues 0
memory used: 999744b of 4Mb
capacity estimate: 2450Kbit
min/max network layer size: 16 / 1500
min/max overhead-adjusted size: 24 / 1508
average network hdr offset: 14
Tin 0
thresh 2450Kbit
target 7.4ms
interval 102.4ms
pk_delay 171.1ms
av_delay 33.9ms
sp_delay 2.7ms
backlog 13133b
pkts 21033937
bytes 2114786990
way_inds 1165320
way_miss 508197
way_cols 0
drops 298924
marks 0
ack_drop 0
sp_flows 65
bk_flows 35
un_flows 0
max_len 1514
quantum 300
qdisc ingress ffff: dev eth0.2 parent ffff:fff1 ----------------
Sent 35295854241 bytes 30238602 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc hfsc 1: dev pppoe-wan root refcnt 2 default 30
Sent 2378619549 bytes 22963023 pkt (dropped 22897, overlimits 9955896 requeues 0)
backlog 465b 7p requeues 0
qdisc fq_codel 400: dev pppoe-wan parent 1:40 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 64787256 bytes 379798 pkt (dropped 1874, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 105462 ecn_mark 0
new_flows_len 0 old_flows_len 2
qdisc fq_codel 100: dev pppoe-wan parent 1:10 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 6297047 bytes 54208 pkt (dropped 11, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 576 drop_overlimit 0 new_flow_count 11519 ecn_mark 0
new_flows_len 1 old_flows_len 2
qdisc fq_codel 200: dev pppoe-wan parent 1:20 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 1741302740 bytes 16005322 pkt (dropped 3674, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 6234000 ecn_mark 0
new_flows_len 1 old_flows_len 1
qdisc fq_codel 300: dev pppoe-wan parent 1:30 limit 800p flows 1024 quantum 300 target 5.0ms interval 100.0ms memory_limit 4Mb
Sent 566232506 bytes 6523695 pkt (dropped 17338, overlimits 0 requeues 0)
backlog 465b 7p requeues 0
maxpacket 1492 drop_overlimit 0 new_flow_count 1864879 ecn_mark 0 memory_used 13888
new_flows_len 4 old_flows_len 19
qdisc ingress ffff: dev pppoe-wan parent ffff:fff1 ----------------
Sent 39581846118 bytes 33145126 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc cake 8025: dev br-guest_lan root refcnt 2 bandwidth 5Mbit besteffort triple-isolate split-gso rtt 100.0ms raw overhead 0
Sent 242512060 bytes 236985 pkt (dropped 5319, overlimits 333338 requeues 0)
backlog 0b 0p requeues 0
memory used: 369024b of 4Mb
capacity estimate: 5Mbit
min/max network layer size: 42 / 1514
min/max overhead-adjusted size: 42 / 1514
average network hdr offset: 14
Tin 0
thresh 5Mbit
target 5.0ms
interval 100.0ms
pk_delay 11.5ms
av_delay 2.0ms
sp_delay 6us
backlog 0b
pkts 242304
bytes 250095210
way_inds 2367
way_miss 14431
way_cols 2
drops 5319
marks 10
ack_drop 0
sp_flows 0
bk_flows 1
un_flows 0
max_len 1514
quantum 300
qdisc ingress ffff: dev br-guest_lan parent ffff:fff1 ----------------
Sent 35414143 bytes 194874 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc noqueue 0: dev wlan1 root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc noqueue 0: dev wlan1-1 root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc cake 8023: dev ifb4eth0.2 root refcnt 2 bandwidth 50Mbit besteffort triple-isolate wash split-gso rtt 100.0ms noatm overhead 8
Sent 35240745902 bytes 29920405 pkt (dropped 318167, overlimits 38224816 requeues 0)
backlog 40237b 30p requeues 0
memory used: 716224b of 4Mb
capacity estimate: 50Mbit
min/max network layer size: 46 / 1500
min/max overhead-adjusted size: 54 / 1508
average network hdr offset: 14
Tin 0
thresh 50Mbit
target 5.0ms
interval 100.0ms
pk_delay 10.2ms
av_delay 2.4ms
sp_delay 338us
backlog 40237b
pkts 30238602
bytes 35719194669
way_inds 1796459
way_miss 474170
way_cols 0
drops 318167
marks 0
ack_drop 0
sp_flows 72
bk_flows 16
un_flows 0
max_len 1514
quantum 1514
qdisc cake 8026: dev ifb4r-guest_lan root refcnt 2 bandwidth 500Kbit besteffort triple-isolate wash split-gso rtt 100.0ms raw overhead 0
Sent 36243899 bytes 193114 pkt (dropped 1760, overlimits 208221 requeues 0)
backlog 0b 0p requeues 0
memory used: 300608b of 4Mb
capacity estimate: 500Kbit
min/max network layer size: 20 / 1514
min/max overhead-adjusted size: 20 / 1514
average network hdr offset: 14
Tin 0
thresh 500Kbit
target 36.3ms
interval 131.3ms
pk_delay 34.0ms
av_delay 2.8ms
sp_delay 13us
backlog 0b
pkts 194874
bytes 38142365
way_inds 2550
way_miss 15107
way_cols 0
drops 1760
marks 45
ack_drop 0
sp_flows 0
bk_flows 1
un_flows 0
max_len 1514
quantum 300
qdisc noqueue 0: dev eth0.3 root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
qdisc noqueue 0: dev eth0.1 root refcnt 2
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0