Still no WIFI with Octoprint 0.15.1 and RPI3b+

What is the problem?
Still no WIFI signal from my Pi3B+

What did you already try to solve it?
I have read every post here and elsewhere on the net about this and tried every suggestion.

Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, octoprint.log, serial.log or output on terminal tab, ...)
I am running windows 10. Have a Logitek wireless mouse/keyboard in the Pi, and a HDMI monitor. Several tries with Etcher with the newest Octopi image and the newest nightly, Pi boots to terminal, no IP assigned, no IP found with Angry IP. Have changed the WPA file with each new imaging, have run Raspi-config and corrected all the items suggested. No WIFI signal. Pi sees my WIFI, but the ANgryIP can't see the Pi. I have NOOBS on another Micro SD and it works and boots fine, WIFI included. HELP!