My problem is that I'm unable to connect to wifi, no matter what I tried.
I tried 3 different SD cards, tried last nightly, edited my octopi-wpa-supplicant with multiple text editors. I swapped the cards between my Octopi and my Retropie and the Octopi one did connect with the Retropie card so I ruled out hardware issue. I changed country to Canada in the file since this is where I am.
iwlist wlan0 scan does show the networks.
PS. my wifi network is hidden but I also tried to connect to my cell phone configured as an AP with no success.
I have Pi 3's. Tried Octopi 15.1 and 16.0 nightly.
Thanks for your help.