say, had ai optimization set for weekly runs since July with no issues. i have a 650 and 670. the last few weeks i have been getting an error Failed to optimize device because of no scan result. looks like the 5ghz channel scan does not suggest a new channel, width and power are green, 2.4 seems good and changed channel and power. dec 9 was a good scan, dec 16th the error started. it fails both scheduled and manual optimization. it switched to channel 52, then errors, not sure if coincidental.. i have channel with fixed at 20 and 80, not sure if that is correct to use. i have rebooted the 650, as well as the oc200 controller with no change. just from the software, reboot. 650 is wired and not using mesh, and no changes in 6 months or more.. 

firmware on my 670 is 1.0.12 and my 650 is on 1.0.6 and my oc200 is on version 5.12.9    2.11.3 Build 20230906 Rel.36272

i do have weekly backups in that time frame, but not sure if that would cause more harm than good. 

seeing EAP650(EU&US&CA&JP)_V1_1.0.10_Build 20230814 (Beta)  reading on that now, should i try that, or keep what i have ?? 

any thoughts, ideas or suggestions ?? thanks much for your time