The Wireless 5GHz channel has dropped from 160Hz to 80Hz

[sfx2000]

It might as well stay on channel 36 and drop the bandwidth to 80MHz.

Thanks - that was my point exactly - wonder if this is an artifact with how the wireless driver is initalized when configured as 160MHz BW - since DFS has to come into play, if there is a WL event that causes the driver to tune away from the extended channels, that it thinks it in automatic mode, doing the scan for activity and tuning to what it thinks is a "better" channel...