What is the problem?
OctoPrint connects to the wrong SSID, despite a different SSID being specified in octopi-wpa-supplicant.txt.
I have a Uibiquiti network setup, and the AP has two SSIDs available. One for 5GHz and one for 2.4 GHz.
In octopi-wpa-supplicant.txt, I have specifically stated the Pi to connect to the 2.4 GHz SSID, because the 5GHz one has poor signal in the room my printer and RPi is. Recently I realized the bandwidth to the RPi is rather slow, so I installed the recently released Wifi plugin. It shows the Pi connected to the 5 GHz SSID, which was really surprising.
What did you already try to solve it?
Nothing. I really don't know where to start.
Have you tried running in safe mode and if so did it solve the issue?
Yes, issue remains.
Complete Logs
octoprint.log, serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support! Not log excerpts, complete logs.)
Here's the entire octopi-wpa-supplicant.txt file content (password is masked here):
# Use this file to configure your wifi connection(s).
#
# Just uncomment the lines prefixed with a single # of the configuration
# that matches your wifi setup and fill in SSID and passphrase.
#
# You can configure multiple wifi connections by adding more 'network'
# blocks.
#
# See https://linux.die.net/man/5/wpa_supplicant.conf
# (or 'man -s 5 wpa_supplicant.conf') for advanced options going beyond
# the examples provided below (e.g. various WPA Enterprise setups).
#
# !!!!! HEADS-UP WINDOWS USERS !!!!!
#
# Do not use Wordpad for editing this file, it will mangle it and your
# configuration won't work. Use a proper text editor instead.
# Recommended: Notepad++, VSCode, Atom, SublimeText.
#
# !!!!! HEADS-UP MACOSX USERS !!!!!
#
# If you use Textedit to edit this file make sure to use "plain text format"
# and "disable smart quotes" in "Textedit > Preferences", otherwise Textedit
# will use none-compatible characters and your network configuration won't
# work!
## WPA/WPA2 secured
network={
ssid="war4peace-2_4"
psk="*************"
}
## Open/unsecured
#network={
# ssid="put SSID here"
# key_mgmt=NONE
#}
## WEP "secured"
##
## WEP can be cracked within minutes. If your network is still relying on this
## encryption scheme you should seriously consider to update your network ASAP.
#network={
# ssid="put SSID here"
# key_mgmt=NONE
# wep_key0="put password here"
# wep_tx_keyidx=0
#}
# Uncomment the country your Pi is in to activate Wifi in RaspberryPi 3 B+ and above
# For full list see: https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
country=RO # Romania
#country=CA # Canada
#country=DE # Germany
#country=FR # France
#country=US # United States
### You should not have to change the lines below #####################
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
Here's the output from iwconfig:
pi@octopi:/boot $ iwconfig
wlan0 IEEE 802.11 ESSID:"war4peace-5"
Mode:Managed Frequency:5.18 GHz Access Point: FC:EC:DA:B5:8E:9F
Bit Rate=90 Mb/s Tx-Power=31 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=33/70 Signal level=-77 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:12460 Invalid misc:0 Missed beacon:0
eth0 no wireless extensions.
lo no wireless extensions.
I had the 5 GHz configured back in May, when I first installed OctoPrint, but switched the configuration to 2.4 GHz after about a week due to poor signal. It had been sitting under 2.4 GHz ever since, or at least that's what I was assuming, until today when I have checked and saw it was connecting to 5 Ghz SSID.
Question is: how do I ensure OctoPrint uses the 2.4 GHz wireless SSID, as specified in the octopi-wpa-supplicant.txt file?
Additional information about your setup
OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
OctoPrint 1.4.2
Python 3.7.3
OctoPi 0.17.0