I have 2 identical rpi 3 devices. Both are running the same version of OS, namely "stretch" version 9 (from the same source). They have slightly diverged via upgrades and updates.
On one I can use wifi-no problem. On the other I cannot.
All configurations files are identical (as far as I can tell). In particular, my wpa_supplicant.conf looks like below.
There are two anomalies I've detected on the problematic pi:
- After every reboot
ps -e | grep wpa
lists two processes called "wpa_supplicant", while on the "good" pi only 1 is listed. - The ssid, I'm trying to connect to, is indeed listed when I click the icon on the toolbar. However, despite the fact that an entry exists in wpa_supplicant.conf, I get prompted and asked to enter the "Pre Shared Key", which I understand is the password. I notice that once I enter it, the file wpa_supplicant.conf is overridden, with the same content it had before.
In addition, I've installed wpa_gui. It provides some more information in (what is referred to as) the event history of the tool. First, by default, the adapter is set to "p2p-dev-wlan0". So, I switch to wlan0. Then, I get:
ctrl-event-ssid-reenebled id=0 ssid="my-ssid"
trying to associate with <some numbers> (sside="my-ssid" freq=...)
ctrl-event-assoc-reject status code=16
ctrl-event-ssid-temp-disabled id=0 ssid="my-ssid" auth_failure
and my wpa_supplicant.conf:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=IL
network={
ssid="my-sside"
psk="my-passowrd"
proto=RSN
key_mgmt=WPA-PSK
pairwise=CCMP
auth_alg=OPEN
}
Any help is appriciated...
auth_alg
,pairwise
andproto
...wpa_gui
will not help.