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FS#2587 - CY-SWR1100 WiFi 2.4GHz fails on some situation #7392

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openwrt-bot opened this issue Nov 11, 2019 · 0 comments
Open

FS#2587 - CY-SWR1100 WiFi 2.4GHz fails on some situation #7392

openwrt-bot opened this issue Nov 11, 2019 · 0 comments
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flyspray kernel pull request/issue with Linux kernel related changes

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mans0n:

When I enable 2.4GHz and disable 5GHz (via uci), and reboot, then both wlan0 (2.4GHz) and wlan1 (5GHz) interface exist on ip link list, but only wlan0 is up and wlan1 is in down state.
In this situation, wlan0 does not work at all. AP SSID can not be found, and iw dev wlan0 scan returns no result.
But when I enable wlan1, or disable it again to make wlan1 completely disappear on ip link list, then wlan0 becomes functional without any problem.

right after boot, wlan0 on, wlan1 off: wlan0 fails, network restart doen't make any difference
right after boot, wlan0 on, wlan1 on: no problem
wlan0 on, wlan1 off->on, network reload: no problem
wlan0 on, wlan1 on->off, network reload: no problem

I found this behavior on 15.05.1, 17.01.6, 18.06.4, and snapshot.

There's a thread on the forum reporting 2.4GHz radio problem. Maybe same bug?
https://forum.openwrt.org/t/samsung-cy-swr1100-radios-are-not-working-even-after-enabled-please-help/13114

@aparcar aparcar added the kernel pull request/issue with Linux kernel related changes label Feb 22, 2022
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Labels
flyspray kernel pull request/issue with Linux kernel related changes
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