How to connect via ssh over wifi to your Pi from desktop computer without attached screen, or keyboard, or even buttons

[zerogeek]

I have been trying to get this to work for almost 2 days. I found out today that once I insert the card into the CSO, the "ssh" and "wpa_supplicant.conf" files disappear. I verified that they are still there after ejecting from my computer (OSX 10.13.3, using terminal and vi to make the files) and re-inserting. But once it's booted from the CSO and doesn't connect, I brought it back to the computer and the files are gone.

Ideas/suggestions not only welcome, but urgently desired!

[YaYa]

It’s normal that thetly are gone as the system use the ssh file to a tivate ssh, and the wpa file to copy it to the netword configuration section

But if does not work for you then :
- your wifi interface is broken
- your ssid is wrong
- your password is wrong
- your router does not accept connection from the pi

Choose from above lol

[zerogeek]

I set up a guest network with no encryption. I can see the network, but it will not connect. It is running on 2.4GHz 802.11 b/g. I am selecting the network within retropi WiFi, so I can't be selecting the wrong ssid and there is no password to worry about. I have even tried connecting to 2 different routers. UGH, so frustrating.
[EDIT TO ADD:]
I have also confirmed that I can connect to the new guest network with another device and am not out of IP addresses in my network.

[zerogeek]

SOLVED

After MUCH searching, i ended up with the following for a wpa_supplicant.conf file. Connection works as expected. NOTE that I am connected to my main home network which is WPA2-PSK [AES]. I have not again tried the guest network, so I'm not sure what was happening there.


update_config=1

network={
ssid="replace_with_your_ssid"
psk="replace_with_your_password"
proto=RSN
key_mgmt=WPA-PSK
pairwise=CCMP
group=CCMP
auth_alg=OPEN
}

[tinkerBOY]

I made a post, Raspberry Pi Headless Wifi Setup which works with the new raspberry pi image which requires you to setup your country location first before the wifi works.

[GigaCat]

Also of note, the Zero/W only connects to 2.4ghz wireless networks, so if you're entering 5ghz info into wpa_supplicant.conf and it doesn't work/you get interface issues when trying to change wifi settings in raspi-config, that's one likely reason.