Can you do the checked as explained on this post ?

https://www.raspberrypi.org/forums/viewtopic.php?t=161923

And let us know if there is something you find out ?

TS

-----------------

Are you sure the PSK was typed properly?
Have you set the WIFI country?
Have a look at wpa_supplicant.conf

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

It should look something like this:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=US

network={
ssid="your ssid here"
psk="your psk here"
key_mgmt=WPA-PSK
}

Remove any duplicated entries (failed attempts).
Note you can connect both wired and WIFI at the same time and even use them concurrently.

Here is my wpa_supplicant.conf file.

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=US

network={
ssid="jesljy"
psk="xxxxxxxxxxx"
key_mgmt=WPA-PSK
}

network={
ssid="iptime"
key_mgmt=NONE
}

The second entry is the one for the open wifi AP that I was able to connect to. That was added automatically, I guess, when I connected.

There are/were no duplicated entries for any of the failed attempts to log into the router. I'm not sure, of course, but could that be significant? Not only am I not connecting, but I'm not getting the OS to record the attempt?

Should the configuration file show WPA for both WPA and WPA2? The router uses WPA2.

The password for the router is alphanumeric, lower-case letters and numbers only. No special characters.

I'm using AES encryption. Should it be TKIP even if that's not optimal for security?

According to other posts in this forum, for WPA2 and AES you need this

network={
ssid="myssid"
psk="mypasskey"
proto=RSN
key_mgmt=WPA-PSK
pairwise=CCMP
auth_alg=OPEN
}

I'm using AES encryption. Should it be TKIP even if that's not optimal for security?

According to other posts in this forum, for WPA2 and AES you need this

network={
ssid="myssid"
psk="mypasskey"
proto=RSN
key_mgmt=WPA-PSK
pairwise=CCMP
auth_alg=OPEN
}

TKIP is the older standard. If using TKIP only then I believe pairwise=TKIP is needed.

My router is set to AES (CCMP) and it just works with the wpa_supplicant.conf which I posted in the 2nd post above.
My wpa_supplicant.conf is the default as generated by the GUI config tools for PSK and WIFI country.