access external wifi

[CapnRon]

I am still looking for help on managing wireless network on OPenPlotter system. I have gone to this page here:
https://raspberrypi.stackexchange.com/qu...associated
and followed their instructions; I tried killing the current wlan0 process (/sbin/wpa_supplicant -u -s -0 /run/wpa_supplicant) but it keeps coming back.

wlan0 remains unassociated
I can see the wireless networks available, but after entering the password nothing happens. I have modified the wpa_supplicant.conf file to include the SSID and PWD as well

When I run $sudo wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -B D I get back
Success initialized wpa_supplicant
ctrl_iface exists and seems to be in use - cannot overide it
Delete '/var/run/wpa_supplicant/wlan0' mannually if it is not in use
Failed to initialize control interface 'Dir=/var/run/wpa_supplicant GROUP=netdev
You may have another wpa_supplicant process already running

anyone?
thanks,
Ron

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And a bit more:
If I run iwconfig, I get
wlan0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=31 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Managment:on

Ron