Hey, I recently got a cheaper Archer C6 v3.20 as I understood it had good OpenWRT support. Yet the Wifi performance is really inconsistent and overall poor.
Test setup:
- Laptop, LG Gram. Running Fedora 36.
- Archer C6 v3.20:
Firmware Version
OpenWrt SNAPSHOT r19863-fd72e595c2 / LuCI Master git-22.167.28356-8effea5
Architecture
MediaTek MT7621 ver:1 eco:3
Running iperf to test speeds I get really inconsistent results, sometimes 70/80/90mbps, while numbers between 5-20 are really common too.
As an example, running iperf to another box in my lan (cable connected):
[ 5] 0.00-1.00 sec 6.25 MBytes 52.4 Mbits/sec 0 280 KBytes
[ 5] 1.00-2.00 sec 4.97 MBytes 41.7 Mbits/sec 0 481 KBytes
[ 5] 2.00-3.00 sec 4.53 MBytes 38.0 Mbits/sec 0 563 KBytes
[ 5] 3.00-4.00 sec 4.88 MBytes 40.9 Mbits/sec 0 669 KBytes
[ 5] 4.00-5.00 sec 3.75 MBytes 31.5 Mbits/sec 0 691 KBytes
[ 5] 5.00-6.00 sec 3.75 MBytes 31.5 Mbits/sec 17 516 KBytes
[ 5] 6.00-7.00 sec 5.00 MBytes 41.9 Mbits/sec 0 580 KBytes
[ 5] 7.00-8.00 sec 3.75 MBytes 31.5 Mbits/sec 0 592 KBytes
[ 5] 8.00-9.00 sec 5.00 MBytes 41.9 Mbits/sec 0 682 KBytes
[ 5] 9.00-10.00 sec 1.25 MBytes 10.5 Mbits/sec 1 50.9 KBytes
Co> nnecting to host 10.15.0.2, port 5444
[ 5] local 10.15.0.155 port 45190 connected to 10.15.0.2 port 5444
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 1.03 MBytes 8.66 Mbits/sec 0 107 KBytes
[ 5] 1.00-2.00 sec 1.18 MBytes 9.90 Mbits/sec 0 157 KBytes
[ 5] 2.00-3.00 sec 2.73 MBytes 22.9 Mbits/sec 0 246 KBytes
[ 5] 3.00-4.00 sec 2.36 MBytes 19.8 Mbits/sec 0 298 KBytes
[ 5] 4.00-5.00 sec 1.99 MBytes 16.7 Mbits/sec 0 320 KBytes
[ 5] 5.00-6.00 sec 2.86 MBytes 24.0 Mbits/sec 0 345 KBytes
[ 5] 6.00-7.00 sec 1.49 MBytes 12.5 Mbits/sec 0 366 KBytes
[ 5] 7.00-8.00 sec 2.24 MBytes 18.8 Mbits/sec 0 366 KBytes
[ 5] 8.00-9.00 sec 764 KBytes 6.26 Mbits/sec 1 369 KBytes
[ 5] 9.00-10.00 sec 764 KBytes 6.25 Mbits/sec 0 29.7 KBytes
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 17.4 MBytes 14.6 Mbits/sec 1 sender
[ 5] 0.00-10.16 sec 15.5 MBytes 12.8 Mbits/sec receiveriperf Done.
The performance is consistently bad throughout various devices (laptop, phone, tablet). I can consistently hit 900+ if I connect my laptop with an ethernet cable and do the exact same test.
As a point of reference, with my old ISP router I can get continuous, stable 60/70mbps iirc.
Note: 5GHz doesn't even work. This is in 2.4GHz.
Relevant configs:
Any pointers are appreciated, I'm a bit lost as to how I should debug this.
