QUERY · ISSUE

ESP8285 can't use ap_if.config "can't set AP config"

openby mindforgeropened 2018-05-23updated 2022-03-05

port-esp8266

i did the following

import network
ap_if = network.WLAN(network.AP_IF)
ap_if.active(False)
ap_if.config(essid="someID", password="somePassword")

but i always get "can't set AP config", no matter what parameter i try to use

MicroPython v1.9.4-8-ga9a3caad0 on 2018-05-11; ESP module with ESP8266

flashed on an plain ES8285 Module

listdir is also doing funky stuff on this module, getting a crap ton of " '\x00\x00\x00\x00\x00\x00\x00\x00.\x00\x00\x00'," as answer + the folders and file that icreated for a test

CANDIDATE · ISSUE

OSError: can't set AP config on ESP8266

closedby inovatoriusopened 2023-08-19updated 2023-08-21

bug

Good day!

Error is raised under these circumstances:

Enable STA interface and connect to AP.
Enable AP interface and set AP channel via config(channel=13)
OSError: can't set AP config

Error is not raised when STA is not connected to AP. Currently, I do not have a shorter version of my code that can reliably reproduce this error.

Nonetheless, should this error be handled inside MicroPython firmware or user should take care of it via try/except?

MicroPython 1.20.0 on ESP2866.

Assessment

S Sonnet · high

Both issues report the same "can't set AP config" OSError on ESP8266/ESP8285 in the same network module code. However, the reproduction conditions differ materially: #3813 fails on basic AP config (essid/password) while AP is inactive, while #12262 only fails when STA is actively connected to an AP and channel is set to 13. The candidate identifies a specific precondition (dual-interface state conflict) that the query does not mention and may not share. Same error surface, same component, but likely different triggering paths — neither resolves the other.

Suggested action

Link both issues as related. Investigate whether the "can't set AP config" error in esp8266/modnetwork.c has multiple triggering conditions — one involving STA connection state and one involving AP inactive state — and whether a single fix addresses both.

ESP8285 can't use ap_if.config "can't set AP config"

OSError: can't set AP config on ESP8266

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