Very slow Wifi 5GHz, Intel 8260 (2x2), bad wifi performance in general !!!

[Kherby]

Today i've noticed that websites were loading very slow when i was connected with my WRT3200acm. Iperf test shows again that something is wrong with the throughput.... This happens every day and i have to reconnect Wifi or restart the Interface to fix it. Also the general 5GHz Wifi performance is bad most of the time, same with 2.4GHz. The throughput is not stable for some reason, even when i'm very close to the Router...

650.0 Mbit/s, 80MHz, VHT-MCS 7, VHT-NSS 2, Short GI
468.0 Mbit/s, 80MHz, VHT-MCS 5, VHT-NSS 2

root@OpenWRT:~# cat /sys/kernel/debug/ieee80211/phy0/mwlwifi/info

driver name: mwlwifi
chip type: 88W8964
hw version: 7
driver version: 10.3.4.0-20180330
firmware version: 0x09030206
power table loaded from dts: no
firmware region code: 0x30
mac address: 
2g: disable
5g: enable
antenna: 4 4
irq number: 49
ap macid support: 0000ffff
sta macid support: 00010000
macid used: 00000003
radio: enable
iobase0: e1100000
iobase1: e1380000
tx limit: 1024
rx limit: 16384

Iperf test:

C:\Users\Admin\iperf-3.1.3-win64>iperf3.exe -c 192.168.1.155 -t 60s
Connecting to host 192.168.1.155, port 5201
[  4] local 192.168.1.199 port 60031 connected to 192.168.1.155 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec   256 KBytes  2.09 Mbits/sec
[  4]   1.00-2.00   sec   256 KBytes  2.10 Mbits/sec
[  4]   2.00-3.00   sec   256 KBytes  2.10 Mbits/sec
[  4]   3.00-4.00   sec   384 KBytes  3.14 Mbits/sec
[  4]   4.00-5.00   sec   384 KBytes  3.15 Mbits/sec
[  4]   5.00-6.00   sec   128 KBytes  1.05 Mbits/sec
[  4]   6.00-7.00   sec  0.00 Bytes  0.00 bits/sec
[  4]   7.00-8.00   sec   128 KBytes  1.05 Mbits/sec
[  4]   8.00-9.00   sec   128 KBytes  1.05 Mbits/sec
[  4]   9.00-10.00  sec   128 KBytes  1.05 Mbits/sec
[  4]  10.00-11.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  11.00-12.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  12.00-13.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  13.00-14.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  14.00-15.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  15.00-16.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  16.00-17.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  17.00-18.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  18.00-19.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  19.00-20.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  20.00-21.00  sec   128 KBytes  1.05 Mbits/sec
[  4]  21.00-22.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  22.00-23.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  23.00-24.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  24.00-25.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  25.00-26.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  26.00-27.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  27.00-28.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  28.00-29.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  29.00-30.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  30.00-31.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  31.00-32.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  32.00-33.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  33.00-34.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  34.00-35.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  35.00-36.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  36.00-37.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  37.00-38.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  38.00-39.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  39.00-40.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  40.00-41.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  41.00-42.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  42.00-43.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  43.00-44.00  sec   128 KBytes  1.05 Mbits/sec
[  4]  44.00-45.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  45.00-46.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  46.00-47.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  47.00-48.00  sec   256 KBytes  2.10 Mbits/sec
[  4]  48.00-49.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  49.00-50.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  50.00-51.00  sec   256 KBytes  2.10 Mbits/sec
[  4]  51.00-52.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  52.00-53.00  sec   128 KBytes  1.05 Mbits/sec
[  4]  53.00-54.00  sec   128 KBytes  1.05 Mbits/sec
[  4]  54.00-55.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  55.00-56.00  sec   128 KBytes  1.05 Mbits/sec
[  4]  56.00-57.00  sec  0.00 Bytes  0.00 bits/sec
[  4]  57.00-58.00  sec   128 KBytes  1.05 Mbits/sec
[  4]  58.00-59.00  sec   128 KBytes  1.05 Mbits/sec
[  4]  59.00-60.00  sec   128 KBytes  1.05 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-60.00  sec  3.50 MBytes   489 Kbits/sec                  sender
[  4]   0.00-60.00  sec  3.27 MBytes   457 Kbits/sec                  receiver

iperf Done.

After restarting Wifi:

C:\Users\Admin\iperf-3.1.3-win64>iperf3.exe -c 192.168.1.155 -t 60s
Connecting to host 192.168.1.155, port 5201
[  4] local 192.168.1.199 port 60132 connected to 192.168.1.155 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  4.62 MBytes  38.8 Mbits/sec
[  4]   1.00-2.00   sec  6.00 MBytes  50.3 Mbits/sec
[  4]   2.00-3.00   sec  7.25 MBytes  60.8 Mbits/sec
[  4]   3.00-4.00   sec  7.38 MBytes  61.9 Mbits/sec
[  4]   4.00-5.00   sec  7.38 MBytes  61.8 Mbits/sec
[  4]   5.00-6.00   sec  5.38 MBytes  45.1 Mbits/sec
[  4]   6.00-7.00   sec  3.38 MBytes  28.4 Mbits/sec
[  4]   7.00-8.00   sec  3.38 MBytes  28.3 Mbits/sec
[  4]   8.00-9.00   sec  4.88 MBytes  40.8 Mbits/sec
[  4]   9.00-10.00  sec  5.50 MBytes  46.2 Mbits/sec
[  4]  10.00-11.00  sec  4.62 MBytes  38.8 Mbits/sec
[  4]  11.00-12.00  sec  4.25 MBytes  35.6 Mbits/sec
[  4]  12.00-13.00  sec  5.12 MBytes  43.0 Mbits/sec
[  4]  13.00-14.00  sec  6.12 MBytes  51.4 Mbits/sec
[  4]  14.00-15.00  sec  3.50 MBytes  29.3 Mbits/sec
[  4]  15.00-16.00  sec  3.88 MBytes  32.6 Mbits/sec
[  4]  16.00-17.00  sec  5.50 MBytes  46.1 Mbits/sec
[  4]  17.00-18.00  sec  12.0 MBytes   101 Mbits/sec
[  4]  18.00-19.00  sec  17.4 MBytes   146 Mbits/sec
[  4]  19.00-20.00  sec  18.0 MBytes   151 Mbits/sec
[  4]  20.00-21.00  sec  16.9 MBytes   142 Mbits/sec
[  4]  21.00-22.00  sec  17.0 MBytes   143 Mbits/sec
[  4]  22.00-23.00  sec  4.75 MBytes  39.8 Mbits/sec
[  4]  23.00-24.00  sec  4.50 MBytes  37.7 Mbits/sec
[  4]  24.00-25.00  sec  4.38 MBytes  36.7 Mbits/sec
[  4]  25.00-26.00  sec  14.4 MBytes   120 Mbits/sec
[  4]  26.00-27.00  sec  18.2 MBytes   153 Mbits/sec
[  4]  27.00-28.00  sec  17.4 MBytes   146 Mbits/sec
[  4]  28.00-29.00  sec  17.8 MBytes   149 Mbits/sec
[  4]  29.00-30.00  sec  18.1 MBytes   152 Mbits/sec
[  4]  30.00-31.00  sec  10.2 MBytes  86.0 Mbits/sec
[  4]  31.00-32.00  sec  4.38 MBytes  36.7 Mbits/sec
[  4]  32.00-33.00  sec  4.25 MBytes  35.6 Mbits/sec
[  4]  33.00-34.00  sec  10.8 MBytes  90.1 Mbits/sec
[  4]  34.00-35.00  sec  18.0 MBytes   151 Mbits/sec
[  4]  35.00-36.00  sec  18.2 MBytes   153 Mbits/sec
[  4]  36.00-37.00  sec  18.5 MBytes   155 Mbits/sec
[  4]  37.00-38.00  sec  17.1 MBytes   144 Mbits/sec
[  4]  38.00-39.00  sec  15.8 MBytes   132 Mbits/sec
[  4]  39.00-40.00  sec  4.38 MBytes  36.7 Mbits/sec
[  4]  40.00-41.00  sec  4.50 MBytes  37.7 Mbits/sec
[  4]  41.00-42.00  sec  6.88 MBytes  57.7 Mbits/sec
[  4]  42.00-43.00  sec  18.6 MBytes   156 Mbits/sec
[  4]  43.00-44.00  sec  17.4 MBytes   146 Mbits/sec
[  4]  44.00-45.00  sec  17.6 MBytes   148 Mbits/sec
[  4]  45.00-46.00  sec  18.6 MBytes   156 Mbits/sec
[  4]  46.00-47.00  sec  19.1 MBytes   161 Mbits/sec
[  4]  47.00-48.00  sec  5.88 MBytes  49.3 Mbits/sec
[  4]  48.00-49.00  sec  4.50 MBytes  37.8 Mbits/sec
[  4]  49.00-50.00  sec  4.25 MBytes  35.6 Mbits/sec
[  4]  50.00-51.00  sec  16.9 MBytes   141 Mbits/sec
[  4]  51.00-52.00  sec  16.4 MBytes   138 Mbits/sec
[  4]  52.00-53.00  sec  16.9 MBytes   141 Mbits/sec
[  4]  53.00-54.00  sec  17.8 MBytes   149 Mbits/sec
[  4]  54.00-55.00  sec  15.9 MBytes   133 Mbits/sec
[  4]  55.00-56.00  sec  10.1 MBytes  85.1 Mbits/sec
[  4]  56.00-57.00  sec  4.50 MBytes  37.7 Mbits/sec
[  4]  57.00-58.00  sec  4.50 MBytes  37.8 Mbits/sec
[  4]  58.00-59.00  sec  11.9 MBytes  99.5 Mbits/sec
[  4]  59.00-60.00  sec  17.1 MBytes   144 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-60.00  sec   640 MBytes  89.4 Mbits/sec                  sender
[  4]   0.00-60.00  sec   640 MBytes  89.4 Mbits/sec                  receiver

iperf Done.

Test 1m away from the WRT3200acm:

C:\Users\Admin\iperf-3.1.3-win64>iperf3.exe -c 192.168.1.155 -t 60s
Connecting to host 192.168.1.155, port 5201
[  4] local 192.168.1.199 port 60226 connected to 192.168.1.155 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  31.9 MBytes   267 Mbits/sec
[  4]   1.00-2.00   sec  32.8 MBytes   275 Mbits/sec
[  4]   2.00-3.00   sec  4.88 MBytes  40.8 Mbits/sec
[  4]   3.00-4.00   sec  5.00 MBytes  42.0 Mbits/sec
[  4]   4.00-5.00   sec  4.88 MBytes  40.9 Mbits/sec
[  4]   5.00-6.00   sec  32.2 MBytes   270 Mbits/sec
[  4]   6.00-7.00   sec  34.6 MBytes   290 Mbits/sec
[  4]   7.00-8.00   sec  34.0 MBytes   285 Mbits/sec
[  4]   8.00-9.00   sec  33.2 MBytes   279 Mbits/sec
[  4]   9.00-10.00  sec  33.4 MBytes   280 Mbits/sec
[  4]  10.00-11.00  sec  13.6 MBytes   114 Mbits/sec
[  4]  11.00-12.00  sec  5.00 MBytes  42.0 Mbits/sec
[  4]  12.00-13.00  sec  4.88 MBytes  40.9 Mbits/sec
[  4]  13.00-14.00  sec  23.5 MBytes   197 Mbits/sec
[  4]  14.00-15.00  sec  34.1 MBytes   286 Mbits/sec
[  4]  15.00-16.00  sec  24.0 MBytes   201 Mbits/sec
[  4]  16.00-17.00  sec  33.8 MBytes   283 Mbits/sec
[  4]  17.00-18.00  sec  32.4 MBytes   272 Mbits/sec
[  4]  18.00-19.00  sec  21.2 MBytes   178 Mbits/sec
[  4]  19.00-20.00  sec  5.00 MBytes  42.0 Mbits/sec
[  4]  20.00-21.00  sec  4.88 MBytes  40.9 Mbits/sec
[  4]  21.00-22.00  sec  14.6 MBytes   123 Mbits/sec
[  4]  22.00-23.00  sec  38.8 MBytes   324 Mbits/sec
[  4]  23.00-24.00  sec  37.6 MBytes   316 Mbits/sec
[  4]  24.00-25.00  sec  37.9 MBytes   319 Mbits/sec
[  4]  25.00-26.00  sec  38.0 MBytes   318 Mbits/sec
[  4]  26.00-27.00  sec  37.2 MBytes   313 Mbits/sec
[  4]  27.00-28.00  sec  5.00 MBytes  41.9 Mbits/sec
[  4]  28.00-29.00  sec  5.00 MBytes  41.9 Mbits/sec
[  4]  29.00-30.00  sec  4.88 MBytes  40.9 Mbits/sec
[  4]  30.00-31.00  sec  22.4 MBytes   188 Mbits/sec
[  4]  31.00-32.00  sec  38.2 MBytes   321 Mbits/sec
[  4]  32.00-33.00  sec  39.0 MBytes   327 Mbits/sec
[  4]  33.00-34.00  sec  37.8 MBytes   317 Mbits/sec
[  4]  34.00-35.00  sec  38.4 MBytes   322 Mbits/sec
[  4]  35.00-36.00  sec  14.5 MBytes   122 Mbits/sec
[  4]  36.00-37.00  sec  5.00 MBytes  41.9 Mbits/sec
[  4]  37.00-38.00  sec  5.00 MBytes  42.0 Mbits/sec
[  4]  38.00-39.00  sec  27.0 MBytes   226 Mbits/sec
[  4]  39.00-40.00  sec  39.1 MBytes   328 Mbits/sec
[  4]  40.00-41.00  sec  38.8 MBytes   325 Mbits/sec
[  4]  41.00-42.00  sec  39.1 MBytes   328 Mbits/sec
[  4]  42.00-43.00  sec  38.6 MBytes   324 Mbits/sec
[  4]  43.00-44.00  sec  24.4 MBytes   204 Mbits/sec
[  4]  44.00-45.00  sec  4.88 MBytes  40.9 Mbits/sec
[  4]  45.00-46.00  sec  4.75 MBytes  39.9 Mbits/sec
[  4]  46.00-47.00  sec  17.9 MBytes   150 Mbits/sec
[  4]  47.00-48.00  sec  37.2 MBytes   313 Mbits/sec
[  4]  48.00-49.00  sec  4.12 MBytes  34.6 Mbits/sec
[  4]  49.00-50.00  sec  1.62 MBytes  13.6 Mbits/sec
[  4]  50.00-51.00  sec  33.5 MBytes   281 Mbits/sec
[  4]  51.00-52.00  sec  27.4 MBytes   229 Mbits/sec
[  4]  52.00-53.00  sec  4.88 MBytes  40.9 Mbits/sec
[  4]  53.00-54.00  sec  4.88 MBytes  40.9 Mbits/sec
[  4]  54.00-55.00  sec  6.12 MBytes  51.4 Mbits/sec
[  4]  55.00-56.00  sec  37.1 MBytes   311 Mbits/sec
[  4]  56.00-57.00  sec  37.8 MBytes   317 Mbits/sec
[  4]  57.00-58.00  sec  37.5 MBytes   315 Mbits/sec
[  4]  58.00-59.00  sec  35.9 MBytes   301 Mbits/sec
[  4]  59.00-60.00  sec  38.6 MBytes   324 Mbits/sec
 - - - - - - - - - - - - - - - - - - - - - - - - -
 [ ID] Interval           Transfer     Bandwidth
 [  4]   0.00-60.00  sec  1.38 GBytes   197 Mbits/sec                  sender
 [  4]   0.00-60.00  sec  1.38 GBytes   197 Mbits/sec                  receiver

 iperf Done.

C:\Users\Admin\iperf-3.1.3-win64>iperf3.exe -c 192.168.1.155 -t 60s
 Connecting to host 192.168.1.155, port 5201
 [  4] local 192.168.1.199 port 60232 connected to 192.168.1.155 port 5201
 [ ID] Interval           Transfer     Bandwidth
 [  4]   0.00-1.00   sec  28.4 MBytes   238 Mbits/sec
 [  4]   1.00-2.00   sec  17.9 MBytes   150 Mbits/sec
 [  4]   2.00-3.00   sec  19.2 MBytes   162 Mbits/sec
 [  4]   3.00-4.00   sec  26.0 MBytes   218 Mbits/sec
 [  4]   4.00-5.00   sec  34.5 MBytes   289 Mbits/sec
 [  4]   5.00-6.00   sec  7.50 MBytes  63.0 Mbits/sec
 [  4]   6.00-7.00   sec  3.50 MBytes  29.4 Mbits/sec
 [  4]   7.00-8.00   sec  3.50 MBytes  29.3 Mbits/sec
 [  4]   8.00-9.00   sec  13.9 MBytes   116 Mbits/sec
 [  4]   9.00-10.00  sec  31.0 MBytes   260 Mbits/sec
 [  4]  10.00-11.00  sec  34.5 MBytes   289 Mbits/sec
 [  4]  11.00-12.00  sec  20.5 MBytes   172 Mbits/sec
 [  4]  12.00-13.00  sec  22.6 MBytes   190 Mbits/sec
 [  4]  13.00-14.00  sec  17.1 MBytes   144 Mbits/sec
 [  4]  14.00-15.00  sec  3.50 MBytes  29.4 Mbits/sec
 [  4]  15.00-16.00  sec  3.38 MBytes  28.3 Mbits/sec
 [  4]  16.00-17.00  sec  9.25 MBytes  77.7 Mbits/sec
 [  4]  17.00-18.00  sec  21.4 MBytes   179 Mbits/sec
 [  4]  18.00-19.00  sec  23.9 MBytes   200 Mbits/sec
 [  4]  19.00-20.00  sec  23.6 MBytes   198 Mbits/sec
 [  4]  20.00-21.00  sec  23.0 MBytes   193 Mbits/sec
 [  4]  21.00-22.00  sec  32.2 MBytes   270 Mbits/sec
 [  4]  22.00-23.00  sec  5.38 MBytes  45.1 Mbits/sec
 [  4]  23.00-24.00  sec  3.88 MBytes  32.5 Mbits/sec
 [  4]  24.00-25.00  sec  3.50 MBytes  29.4 Mbits/sec
 [  4]  25.00-26.00  sec  23.2 MBytes   195 Mbits/sec
 [  4]  26.00-27.00  sec  25.6 MBytes   215 Mbits/sec
 [  4]  27.00-28.00  sec  24.9 MBytes   209 Mbits/sec
 [  4]  28.00-29.00  sec  28.8 MBytes   241 Mbits/sec
 [  4]  29.00-30.00  sec  26.9 MBytes   226 Mbits/sec
 [  4]  30.00-31.00  sec  11.8 MBytes  98.5 Mbits/sec
 [  4]  31.00-32.00  sec  3.25 MBytes  27.3 Mbits/sec
 [  4]  32.00-33.00  sec  4.00 MBytes  33.5 Mbits/sec
 [  4]  33.00-34.00  sec  2.75 MBytes  23.1 Mbits/sec
 [  4]  34.00-35.00  sec  17.8 MBytes   149 Mbits/sec
 [  4]  35.00-36.00  sec  23.6 MBytes   198 Mbits/sec
 [  4]  36.00-37.00  sec  28.9 MBytes   242 Mbits/sec
 [  4]  37.00-38.00  sec  18.1 MBytes   152 Mbits/sec
 [  4]  38.00-39.00  sec  14.4 MBytes   121 Mbits/sec
 [  4]  39.00-40.00  sec  3.75 MBytes  31.4 Mbits/sec
 [  4]  40.00-41.00  sec  5.00 MBytes  42.0 Mbits/sec
 [  4]  41.00-42.00  sec  8.00 MBytes  67.1 Mbits/sec
 [  4]  42.00-43.00  sec  23.9 MBytes   200 Mbits/sec
 [  4]  43.00-44.00  sec  23.6 MBytes   198 Mbits/sec
 [  4]  44.00-45.00  sec  23.2 MBytes   195 Mbits/sec
 [  4]  45.00-46.00  sec  16.6 MBytes   139 Mbits/sec
 [  4]  46.00-47.00  sec  19.5 MBytes   164 Mbits/sec
 [  4]  47.00-48.00  sec  3.25 MBytes  27.3 Mbits/sec
 [  4]  48.00-49.00  sec  5.00 MBytes  41.9 Mbits/sec
 [  4]  49.00-50.00  sec  4.00 MBytes  33.5 Mbits/sec
 [  4]  50.00-51.00  sec  24.6 MBytes   207 Mbits/sec
 [  4]  51.00-52.00  sec  25.5 MBytes   214 Mbits/sec
 [  4]  52.00-53.00  sec  24.2 MBytes   204 Mbits/sec
 [  4]  53.00-54.00  sec  26.2 MBytes   220 Mbits/sec
 [  4]  54.00-55.00  sec  25.8 MBytes   216 Mbits/sec
 [  4]  55.00-56.00  sec  9.12 MBytes  76.5 Mbits/sec
 [  4]  56.00-57.00  sec  3.88 MBytes  32.5 Mbits/sec
 [  4]  57.00-58.00  sec  3.25 MBytes  27.3 Mbits/sec
 [  4]  58.00-59.00  sec  14.9 MBytes   125 Mbits/sec
 [  4]  59.00-60.00  sec  19.2 MBytes   161 Mbits/sec
 - - - - - - - - - - - - - - - - - - - - - - - - -
 [ ID] Interval           Transfer     Bandwidth
 [  4]   0.00-60.00  sec  1000 MBytes   140 Mbits/sec                  sender
 [  4]   0.00-60.00  sec  1000 MBytes   140 Mbits/sec                  receiver

 iperf Done.

Why is the speed dropping to ~30-40Mbps when i'm only 1m away from the AP ?? Why is this only happening with the WRT3200acm and not with my other Hardware ?? Is the wifi unit defective ?! Do i need to contact Linksys for a replacement ?? Or is it just the marvel driver causing this issues ? What can i do to fix the sloppy wifi performance ? Btw, im even using Linksys High Gain Antennas (WRT004ANT)... I'm using the latest Intel Wifi drivers and 5Ghz works just fine with my other Hardware... For example here is a test with my DIR-860L @ 5GHz:

C:\Users\Admin\iperf-3.1.3-win64>iperf3.exe -c 192.168.1.155-t 60s
Connecting to host 192.168.1.155, port 5201
[  4] local 192.168.1.199 port 60160 connected to 192.168.1.155 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  34.0 MBytes   285 Mbits/sec
[  4]   1.00-2.00   sec  35.1 MBytes   295 Mbits/sec
[  4]   2.00-3.00   sec  33.2 MBytes   279 Mbits/sec
[  4]   3.00-4.00   sec  34.4 MBytes   288 Mbits/sec
[  4]   4.00-5.00   sec  33.1 MBytes   278 Mbits/sec
[  4]   5.00-6.00   sec  33.0 MBytes   277 Mbits/sec
[  4]   6.00-7.00   sec  32.9 MBytes   276 Mbits/sec
[  4]   7.00-8.00   sec  30.5 MBytes   256 Mbits/sec
[  4]   8.00-9.00   sec  33.2 MBytes   279 Mbits/sec
[  4]   9.00-10.00  sec  32.9 MBytes   276 Mbits/sec
[  4]  10.00-11.00  sec  33.2 MBytes   279 Mbits/sec
[  4]  11.00-12.00  sec  33.4 MBytes   280 Mbits/sec
[  4]  12.00-13.00  sec  33.6 MBytes   282 Mbits/sec
[  4]  13.00-14.00  sec  33.4 MBytes   280 Mbits/sec
[  4]  14.00-15.00  sec  33.2 MBytes   279 Mbits/sec
[  4]  15.00-16.00  sec  34.1 MBytes   286 Mbits/sec
[  4]  16.00-17.00  sec  34.1 MBytes   286 Mbits/sec
[  4]  17.00-18.00  sec  33.8 MBytes   283 Mbits/sec
[  4]  18.00-19.00  sec  34.5 MBytes   290 Mbits/sec
[  4]  19.00-20.00  sec  32.5 MBytes   272 Mbits/sec
[  4]  20.00-21.00  sec  30.5 MBytes   256 Mbits/sec
[  4]  21.00-22.00  sec  34.1 MBytes   286 Mbits/sec
[  4]  22.00-23.00  sec  33.9 MBytes   284 Mbits/sec
[  4]  23.00-24.00  sec  34.2 MBytes   287 Mbits/sec
[  4]  24.00-25.00  sec  33.9 MBytes   284 Mbits/sec
[  4]  25.00-26.00  sec  34.2 MBytes   287 Mbits/sec
[  4]  26.00-27.00  sec  34.4 MBytes   288 Mbits/sec
[  4]  27.00-28.00  sec  35.2 MBytes   295 Mbits/sec
[  4]  28.00-29.00  sec  33.1 MBytes   278 Mbits/sec
[  4]  29.00-30.00  sec  33.1 MBytes   278 Mbits/sec
[  4]  30.00-31.00  sec  33.6 MBytes   282 Mbits/sec
[  4]  31.00-32.00  sec  29.9 MBytes   250 Mbits/sec
[  4]  32.00-33.00  sec  26.9 MBytes   225 Mbits/sec
[  4]  33.00-34.00  sec  31.2 MBytes   262 Mbits/sec
[  4]  34.00-35.00  sec  32.5 MBytes   273 Mbits/sec
[  4]  35.00-36.00  sec  33.8 MBytes   283 Mbits/sec
[  4]  36.00-37.00  sec  31.6 MBytes   265 Mbits/sec
[  4]  37.00-38.00  sec  28.6 MBytes   240 Mbits/sec
[  4]  38.00-39.00  sec  29.5 MBytes   247 Mbits/sec
[  4]  39.00-40.00  sec  31.0 MBytes   260 Mbits/sec
[  4]  40.00-41.00  sec  30.0 MBytes   252 Mbits/sec
[  4]  41.00-42.00  sec  30.2 MBytes   254 Mbits/sec
[  4]  42.00-43.00  sec  30.1 MBytes   252 Mbits/sec
[  4]  43.00-44.00  sec  30.0 MBytes   252 Mbits/sec
[  4]  44.00-45.00  sec  27.6 MBytes   232 Mbits/sec
[  4]  45.00-46.00  sec  27.6 MBytes   232 Mbits/sec
[  4]  46.00-47.00  sec  30.8 MBytes   258 Mbits/sec
[  4]  47.00-48.00  sec  26.8 MBytes   224 Mbits/sec
[  4]  48.00-49.00  sec  32.5 MBytes   273 Mbits/sec
[  4]  49.00-50.00  sec  25.6 MBytes   215 Mbits/sec
[  4]  50.00-51.00  sec  25.4 MBytes   213 Mbits/sec
[  4]  51.00-52.00  sec  23.4 MBytes   196 Mbits/sec
[  4]  52.00-53.00  sec  30.0 MBytes   252 Mbits/sec
[  4]  53.00-54.00  sec  28.5 MBytes   239 Mbits/sec
[  4]  54.00-55.00  sec  27.6 MBytes   232 Mbits/sec
[  4]  55.00-56.00  sec  28.0 MBytes   235 Mbits/sec
[  4]  56.00-57.00  sec  25.0 MBytes   210 Mbits/sec
[  4]  57.00-58.00  sec  31.5 MBytes   264 Mbits/sec
[  4]  58.00-59.00  sec  26.5 MBytes   222 Mbits/sec
[  4]  59.00-60.00  sec  30.1 MBytes   253 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-60.00  sec  1.84 GBytes   263 Mbits/sec                  sender
[  4]   0.00-60.00  sec  1.84 GBytes   263 Mbits/sec                  receiver

iperf Done.

[ghost]

I gave up on the router and sold it on Amazon and bought a Linksys Velop AC6600 three node system to replace the broken WRT3200ACM wifi.

There is more wrong with the mwlwifi than ESP and Intel card compatibility.

Once I switched, performance has been tenfold better all the time, plus each node can be directly wired -:)

On Sun, Jan 13, 2019, 09:45 tiagogaspar8 <notifications@github.com wrote:

@makedir https://github.com/makedir I have already spent too much money on this router and every other device achieves very high speeds in wireless so I'd rather replace the wireless card on my PC with another one. Intel has been nagging me with this issue as I don't answer fast enough and they want to solve this issue as fast as possible. Now, I need to know if this problem we're all having is with the intel driver or with the mwlwifi firmware. Maybe the Intel driver has a bug that other AP's "ignore" and mwlwifi just can't deal with it and forces those sudden drops (?) I'm willing to test anything @yuhhaurlin https://github.com/yuhhaurlin wants to help fix everything.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/kaloz/mwlwifi/issues/307#issuecomment-453840201, or mute the thread https://github.com/notifications/unsubscribe-auth/ARIphLv9ALGBHgBWBmEApz6lELLNtNQsks5vC1R-gaJpZM4VCdMd .

[diizzyy]

fwiw, I have Intel 9260 clients running just fine off 5Ghz (Windows 10)

[tiagogaspar8]

@diizzyy really? I'll be thinking about buying that card. Thanks!

[makedir]

So hard to read? I said the opposite: https://github.com/kaloz/mwlwifi/issues/307#issuecomment-406100552

[diizzyy]

@makedir Different radios, WRT1200AC vs WRT3200ACM

[Kherby]

So I guess this problem will never be fixed?

[makedir]

So I guess this problem will never be fixed?

Correct. I advice you to sell the WRT3200, then buy a WRT1200 (you get them really cheap, it has the same CPU power than the 3200), and then buy a stand alone access point.

[BrainSlayer]

the wrt3200 has a higher cpu clock speed

[thagabe]

If you are just going to sell the WRT3200 you might as well get a low-power x86 base with ath10k AP's

[infabo]

@makedir Different radios, WRT1200AC vs WRT3200ACM

I have both the WRT1200 and WRT3200. Although they have different radios - both WIFI suck really hard. I always had issues with the 1200 and thought with an upgrade to WRT3200 all problems will disappear. Haha ROFL. The wifi of WRT3200 is even worse! I could not believe it. This damn router has 2 additional antennas and performs so badly. It was a true downgrade. Haha, a downgrade from a troublesome WRT1200. One could call it disaster.

[tiagogaspar8]

@yuhhaurlin any updates about this issue?

[makedir]

@yuhhaurlin any updates about this issue?

lol. How many times? It wont get fixed. Do yourself a favor and buy a standlone AP, something like a Ubiquiti https://www.amazon.de/Ubiquiti-Networks-2-4GHz-867Mbit-UAP-AC-LITE/dp/B016K4GQVG/ref=sr_1_4?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=access+point&qid=1556321813&s=gateway&sr=8-4

[tiagogaspar8]

I see what you mean, but I already bought this router, It works so well for me, there are no routers in the market that perform as well as this one besides this Intel issue, at least for the same price, so I'm here to hep whoever is building this driver to fix it. I would do it myself but I ave no idea how to....

PS: @yuhhaurlin I don't know if I should be saying this to you or to @kaloz but there seems to be a issue with the WMM queues in that some of them are swapped, and that makes that priorities aren't correctly assigned (?) As I've said before I'm willing to make the needed tests to solve these issues.

[makedir]

It works so well for me,

lel. Dont you see your mistake here? You even gave yourself the correct answer. Never buy a router with build in wifi.

[davidc502]

That's what I've been telling people; go out and buy an AP if wifi isn't working well. The router functions with OpenWrt are worth it alone without WiFi. IMHO, Linksys should just sell a powerful Wrt router without Wifi, and let people buy a separate AP.

[Chadster766]

Funny stuff since AP's are the same as wireless router's hardware wise (actually APs typically have lower specs). You can turn any wireless router into an AP just put all interfaces (eth and wlan) onto the same bridge interface.

[makedir]

Funny stuff since AP's are the same as wireless router's hardware wise (actually APs typically have lower specs). You can turn any wireless router into an AP just put all interfaces (eth and wlan) onto the same bridge interface.

Nope, "theyre not". I am speaking about a "REAL AP", not some bogus fake AP from the typical moron companies ala Netgear, D-Link(lel) ect. I gave already an example, Ubiquiti.

The difference here is, that companies like Ubiquiti need to be competent, Netgear and co not, because just being consumer products. They have no need to bring out a working product including software/drivers.

The difference also is, that wifi module differ in the chip, broadwell, Intel, Qualcomm, Marvel. And sadly, Marvel is just trash for the driver part. That is just how it i.

[alexsmartens]

Has anyone noticed 30% ram usage on wrt3200 by mwlwifi like in this issue #152? I noticed ~ 150 Mb memory usage by mwlwifi. Do you have any suggestions/recommendations?

[WildByDesign]

For what it's worth, I had been suffering with an Intel 7260 wifi chip in my ultrabook for something like two years now with my WRT3200ACM and performance going back and forth between really fast and dial up speeds. It would always scale in between those speeds without much reasoning and the wireless channels would also randomly disappear. Meanwhile, all of the other 10-12 wireless devices in the house had zero issues with connectivity or speed. So just recently I decided to look more into wireless chipsets and do some research.

I finally decided to pick up a cheap Atheros QCA9377 wireless chip from Amazon for $20 and swap out the Intel chip for this one quite easily with the underside of my ultrabook. The suffering ended immediately.

My first reaction after 10-15 minutes of web browsing was "Wow, so this is what the Internet is like!!! "This is what I have been missing out on while using mwlwifi connected to a device with an Intel wireless chipset".

Huge difference. And the Atheros QCA9377, by specifications, is slower in comparison to the Intel 7260 chip. Yet, when it comes to whacky incompatibilities and bugs like the mess that is mwlwifi, specifications on paper do not always equal real world performance. Seriously, the difference is like night and day. If anybody has a wireless chipset that mwlwifi does not get along with, it is worth doing a bit of research and finding another chipset. If you can't swap out a wireless chipset, you can look into USB wireless sticks which are a bit more money, but try to determine chipsets before purchasing because different hardware revisions can have different chipsets in some cases.

Anyway, I wanted to share my experience with mwlwifi and since I had some bit of success in the end, I decided to post this info here just in case it may be beneficial to others. Have a look at some of the Qualcomm Atheros wireless chipsets before dropping your mwlwifi router entirely.

[makedir]

@WildByDesign I agree on what you monitored about the Intel wifi card. Something is just wrong and broken with Intels Wifi drivers, since years. At least under Windows. I noticed Intel also releases a new Wiffi driver every 4-6 weeks and everytime I look into their changelog, there are like 10 changes for stability/performance, kinda a back and forth back and forth back and forth. Somehow they dont know what theyre doing, or the chip is kinda broken in hardware, and they try to fix it with workarounds, which just never work perfectly. They sadly have discotinued the development for the 7260 chip, and only newer ones are still developed. The 9260 works much better and has stable and better peformance, yet it still has its little hick ups sometimes.