[FS#3296] TP-Link RE450 v3: QCA9880 (5 GHz-Wifi) is only detected sporadically

[OpenWrt Bugs]

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FS#3296 - TP-Link RE450 v3: QCA9880 (5 GHz-Wifi) is only detected sporadically
User who did this - Alfred Reichenberger (Alfredoredo)

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Maybe I should be a bit more precise about this behavior: OpenWRT only recognizes the QCA9880 802.11nac on a cold boot, i.e. when I'm plugging the RE450 to a power outlet. When rebooting the device (either by typing 'reboot' in a SSH-session or via LuCI) the QCA9880 802.11nac-wifi is not detected anymore. The only way to get it detected and working again is to remove the device from power, wait a bit (I don't know an exact time, I just noticed that unplugging and directly replugging doesn't work) and plug it back into the power outlet.
So QCA9880 (5 GHz-Wifi) is not detected sporadically as I stated in the original report but it's rather only detected on a cold boot.
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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3296#comment8684

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