[FS#1041] Auto channel selection chooses 1 with HT40 enabled

[LEDE Bugs]

The following task has a new comment added:

FS#1041 - Auto channel selection chooses 1 with HT40 enabled
User who did this - Luke Dashjr (luke-jr)

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Channel 1 with HT20 does work fine also.

I don't know why it's using 2.4 GHz; I have the same SSID configured for both 2.4 and 5 GHz.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1041#comment3555