What is the problem?
I have a working Pi Model 3 B V1.2 (actually 2 as noted below) . Running the latest version of Octopi (V0.17.0) but the WIFI doesn't work. I have properly set up the router username/PW and the country code (US) in the WPA. I've gone thru the raspi-config network options to set up the router as well but it won't allow me to do so. SSH does not recognize nor does my router see the Pi. I replaced the power supply and used different SD cards.
What's really confusing to me is that I can leave every thing the same and just replace the Octopi SD with the latest Raspbian OS and it loads with the GUI with WIFI. I can see the URL, I can SSH in, browse, etc.
Lastly I actually have (2) identical set ups. Neither worked and I got the same error messages. But while poking around trying different things the one Pi started working. Octoprint works, camera works, etc. Unfortunately I have no idea what I did... But it does validate that it can work.
I'm reasonably confident that it is a software issue. The one thing I haven't done yet is install the SD card with the working Octopi into the raspberry Pi board that I haven't been able to work. It is actually running a printer right now so I don't want to disturb it.I'm also afraid that I might mess something up and end up with two dead Octopi controllers.
What did you already try to solve it?
As stated above, I've switched gear, operating systems, power supplies, USB cables, SD cards, etc. I've tried to connect manually, using raspi-config, I've modified the WPA using Notepad++. I am no expert with Pi, Octoprint, python, etc but I can follow directions. There must be something I did or didn't do but for the life of me I can't figure out what it is...
Additional information about your network
ATT/Uverse DSL router.No hotspot, access points, etc. Very plain Jane set up.
As I said, the one Pi is running Octoprint just fine with WIFI, the other runs fine with an Ethernet cable but doesn't recognize WIFI using Octopi (but does with Raspbian).
Thank you in advance for your help!