I received my first RPi this week with the intention of using it to run Octoprint for my Creality 3D Printer over wifi.
I purchased an RP4b, sd card, RP power supply and RP camera all from Core in one bundle.
I followed all the guides and downloaded the Octoprint image using the RPi Imager. Configured my SSID and Passkey via the imager. (Headless setup)
After inserting the SD in the RPi it boots but does not connect to my wifi router (TPLINK Archer C1200).
So I have followed all of the troubleshooting guides edited the
octopi-wpa-supplicant.txt file maually ensuring everything was correct. - No luck
I even renamed the default SSIDs in the router to remove any characters like underscores, then re-connected all the devices in my house - what a pain.
octopi-wpa-supplicant.txt file to match - no luck.
RE-imaged the SD Card numerous times, triple checking the country codes and time zones as well as the wifi credentials - still no good.
Re-imaged the sd card with standard Raspberry Pi image still no luck.
Running the ifconfig was sometimes showing no wlan0, and sometimes it was showing up.
Running the iwlist commands it sometimes scanned but showed no wifi networks, sometimes it would say wlan0 doesnt support scanning.
I have spent 14 hours on this today with no avail - i really think the wifi is broken on my RPi 4.
BTW it works perfectly on ethernet hardwire, ocotprint functions normally. Just no connection at all with wifi, either on the 5G band or the 2.4 band.
I don’t believe it can be this hard, I am not a newbie with computers and OS installs, been playing around since DOS 3.2, also been using Arduinos for years. But I will admit that this is my first RPi, so there maybe something I am missing, but my gut feeling based on the conflicting status messages is that the hardware is faulty.
I would be interested in anyone else’s thoughts on this. Apologies for not providing any screen caps from the various tests etc. It’s late here and been bashing my head against this for a long time.
If you wish to see the specific files etc, I can upload tomorrow night after work