Setting Wifi Channel on AP (and why isn't there a Wifi channel in this forum?)

GivEnergy Products GivEnergy All In One
1

I have AIO and GW.

I am running FW 5.05T.19(Boot:V1.1.3) on both.

I am trying to change the AP channel from 1 to 6.
I go into AP Interface setting.
I select Channel 6 and Apply
I dutifully go to the Device Management page and Restart.
It reboots, and I reconnect… and AP Interface setting still says Channel 1.

Anyone else seen similar? (I want to change it because my own 2.4GHz channel is using both 1 and 11 (mesh), and I want to remove any chance of interference.