[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 - Mauro Mozzarelli (ezplanet)

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Arjen,

I understand DFS, however when the channel jumps to 36:

- the following leads me to believe there is a problem with DFS implementation:
1) it does not happen when the router is configured on Ch 40 to 56 that in my area have the most usage (other SSIDs present on most this channel range)
2) it does happen only when the routers are configured on channels above 100 where there is no other local usage or interference
3) whilst the router is in use and there is traffic, the channel does not jump
4) jumps to ch 36 happen mostly overnight when the router is not in use and there are no devices associated

- the following is a blocking bug:
5) after the channel jumps to 36, if I disable and then re-enable the WiFi interface (using luci), WiFi does not get re-enabled (tried several times) and the SSID no longer appears, not even on Ch 36. It requires a reboot to get the WiFi interface to get back working again.



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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#comment1783