@anomeome
I tested the following:
kmod-mwlwifi_4.14.20+10.3.4.0-20171129-1_arm_cortex-a9_vfpv3
kmod-mwlwifi_4.14.20+2018-01-18-a149180f-1_arm_cortex-a9_vfpv3
kmod-mwlwifi_4.14.20+2018-02-06-4464371f-1_arm_cortex-a9_vfpv3
kmod-mwlwifi_4.14.20+2018-02-08-064e888e-1_arm_cortex-a9_vfpv3
My issue is present on all. With 064e888e the router crashed after two minutes. I can see why people are complaining.
I am beginning to think that my issue is with broken code related to the regulatory restrictions. In my case all channels that require DFS (radar detection) do not work.
I remember when I first set the linksys firmware to a DFS frequency, the radio did not work for a couple of minutes, and then started working. Further reboots did not cause any delays. With OpenWRT it doesn't work even after a long time. I tried using wpad instead of wpad-mini, did not help. Any ideas for a fix?
https://wiki.openwrt.org/doc/uci/wireless#dfsradar_detection
If you define a channel in your wireless config that requires DFS according to your country regulations, the 5GHz radio device won't start up unless OpenWRT is able to provide DFS support (i.e. it is both included and enabled)
iw reg get
global
country 98: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW
(5490 - 5710 @ 160), (N/A, 23), (0 ms), DFS
(57240 - 63720 @ 2160), (N/A, 40), (N/A)
phy#2
country US: DFS-FCC
(2402 - 2472 @ 40), (N/A, 30), (N/A)
(5170 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
(5490 - 5730 @ 160), (N/A, 23), (0 ms), DFS
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(57240 - 63720 @ 2160), (N/A, 40), (N/A)
phy#1
country FR: DFS-ETSI
(2402 - 2482 @ 40), (N/A, 20), (N/A)
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW
(5490 - 5710 @ 160), (N/A, 27), (0 ms), DFS
(57000 - 66000 @ 2160), (N/A, 40), (N/A)
phy#0
country FR: DFS-ETSI
(2402 - 2482 @ 40), (N/A, 20), (N/A)
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW
(5490 - 5710 @ 160), (N/A, 27), (0 ms), DFS
(57000 - 66000 @ 2160), (N/A, 40), (N/A)