Pico W AP mode runs only in open unsecured mode #17059

tjlynchny · 2025-03-31T21:26:41Z

tjlynchny
Mar 31, 2025

I have an original Pico W with MicroPython v1.24.1 (2024-11-29). I am trying to run the wifi in AP mode. It works, but only in unsecure mode. I've looked at [issue #8858] which seems to say that AP mode should work with a password assigned, but I cannot get that to work. Here's my code:

import socket
import network

ap = network.WLAN(network.AP_IF)
ap.config(essid='My Pico W', key='secret')
ap.active(True)

while ap.active() == False:
  pass

print(ap.ifconfig())

for param in ('mac','ssid','channel','hidden','password',
              'security','key','hostname','reconnects',
              'txpower','pm'):
    try:
        print(f'{param}: {ap.config(param)}')
    except ValueError:
        print(f'"{param}" not available')
def web_page():
  html = """HTTP/1.0 200 OK\r\nContent-type: text/html\r\n\r\n<!DOCTYPE html /><html><head><meta name="viewport"
content="width=device-width, initial-scale=1">
</head> <body><h1>Test</h1>
MicroPython v1.24.1 on 2024-11-29; Raspberry Pi Pico W with RP2040
</body></html>"""
  return html

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('', 80))
s.listen(5)

print('waiting for connection ...')
while True:
  conn, addr = s.accept()
  print('Got a connection from %s' % str(addr))
  request = conn.recv(1024)
  print('Content = %s' % str(request))
  response = web_page()
  conn.send(response)
  conn.close()

Here's what the Thonny console prints:

MPY: soft reboot
('192.168.4.1', '255.255.255.0', '192.168.4.1', '0.0.0.0')
mac: b'(\xcd\xc1\n)\t'
ssid: My Pico W
channel: 3
"hidden" not available
"password" not available
security: 4194308
"key" not available
hostname: PicoW
"reconnects" not available
txpower: 31
pm: 10555714
waiting for connection ...

Doesn't matter if I pass 'key' or 'password' to 'ap.config', the results are essentially the same. Once the code is running, I can connect without a password even though I specified a password in ap.config.

What am I missing? How do I enable security?

erazer0815 · 2025-04-24T22:39:25Z

erazer0815
Apr 24, 2025

I've switched from
MicroPython v1.24.1 on 2024-11-29; Raspberry Pi Pico W with RP2040 to
MicroPython v1.25.0 on 2025-04-15; Raspberry Pi Pico W with RP2040.
It seems that
wlan.config(security=4) # WPA/WPA2-PSK doesn't work. I've got WEP.

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Pico W AP mode runs only in open unsecured mode #17059

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Pico W AP mode runs only in open unsecured mode #17059

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tjlynchny Mar 31, 2025

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erazer0815 Apr 24, 2025

tjlynchny
Mar 31, 2025

erazer0815
Apr 24, 2025