[GH-ISSUE #486] NodeMCU will not show SSID with many WiFi Networks near by #406

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opened 2026-02-28 01:25:09 +03:00 by kerem · 5 comments

kerem commented

2026-02-28 01:25:09 +03:00

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Originally created by @crashtestoz on GitHub (Jan 20, 2018).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/486

I am not sure if this is an issue with the NodeMCU v1 or the WiFiManager in Server mode but I noticed that if there are many WiFi networks near by, the device will not show the SSID of the WiFi Network.

If I move the device to a quitter part of the house it works without problems.

Any ideas?

Originally created by @crashtestoz on GitHub (Jan 20, 2018). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/486 I am not sure if this is an issue with the NodeMCU v1 or the WiFiManager in Server mode but I noticed that if there are many WiFi networks near by, the device will not show the SSID of the WiFi Network. If I move the device to a quitter part of the house it works without problems. Any ideas?

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2026-02-28 01:25:09 +03:00

kerem commented

2026-02-28 01:25:10 +03:00

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@tablatronix commented on GitHub (Jan 20, 2018):

How many?

@tablatronix commented on GitHub (Jan 20, 2018): How many?

kerem commented

2026-02-28 01:25:10 +03:00

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@crashtestoz commented on GitHub (Jan 21, 2018):

I counted 25-27 WiFi Networks with a mixture of 2.4Ghz and 5Ghz.

@crashtestoz commented on GitHub (Jan 21, 2018): I counted 25-27 WiFi Networks with a mixture of 2.4Ghz and 5Ghz.

kerem commented

2026-02-28 01:25:10 +03:00

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@tablatronix commented on GitHub (Jan 21, 2018):

Sounds pretty normal, I have ap scan issues at around 25-30, I think the scan actually times out on the esp hardware. But I will keep this open, and confirm.

@tablatronix commented on GitHub (Jan 21, 2018): Sounds pretty normal, I have ap scan issues at around 25-30, I think the scan actually times out on the esp hardware. But I will keep this open, and confirm.

kerem commented

2026-02-28 01:25:10 +03:00

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@mtiutiu commented on GitHub (Jan 26, 2018):

With so many wifi networks around it's hard I guess even if you want to change the wifi channel. I made some changes with some defines for this great library so that at compile time you can change the wifi channel - I'll propose a PR when I have the time.

@mtiutiu commented on GitHub (Jan 26, 2018): With so many wifi networks around it's hard I guess even if you want to change the wifi channel. I made some changes with some defines for this great library so that at compile time you can change the wifi channel - I'll propose a PR when I have the time.

kerem commented

2026-02-28 01:25:10 +03:00

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@tablatronix commented on GitHub (Jan 26, 2018):

Like a channel filter.. hmm that would certainly help

@tablatronix commented on GitHub (Jan 26, 2018): Like a channel filter.. hmm that would certainly help