[FS#506] BT Home Hub 5: 5g WiFi jumps to channel 36 and stops working if stopped and restarted

[LEDE Bugs]

The following task has a new comment added:

FS#506 - BT Home Hub 5: 5g WiFi jumps to channel 36 and stops working if stopped and restarted
User who did this - Arjen de Korte (arjendekorte)

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This could be due to radar activity and DFS backing out. Check out if

   /sys/kernel/debug/ieee80211/phy1/ath9k/dfs_stats

shows any hints of what could be going on.

Note that Ch 104 works fine on a WNDR4300 I have here (r3426-4c09f99605).
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=506#comment1772