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Re: How to wake up the WiFi on a Zero 2W (it was working but has stopped)

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On 18/03/2026 13:56, Chris Green wrote:
> The Natural Philosopher <tnp@invalid.invalid> wrote:
>> On 18/03/2026 12:55, Chris Green wrote:
>>> I have a new[ish] Pi Zero 2W running in a building close to our house
>>> (close means about 30 yards away).  When I installed it I configured
>>> one of the possible WiFi SSIDs with rpi-imager, then after installing
>>> I added the other possible SSID (using nmcli I think).
>>>
>>> It has run quite happily for a few days but as of yesterday afternoon
>>> shows no sign of being connected.
>>>
>>> I have tried restarting it, no effect.  I have checked both of the
>>> routers it might connect to and they're both running and haven't
>>> moved. I've even moved one of them into what is effectively line of
>>> sight to the Zero 2W.  Still no connection.
>>>
>>> What might be wrong and what can I do to get it to connect?
>>>
>> Bring it in and put a terminal and keyboard on it so you can look at the
>> logs.
>>
> That's not very easy, it's a bit of a 'fixed' installation. It might
> be easier to move one of the routers nearer to it.
> 
Well keyboards are portable enough. HDMI screen - not so much.


>> I have a 30 metre pi Pico and it connects anywhere between -80dM and
>> 'not at all' for no visible reason - maybe its leaves blowing in the
>> wind. I dunno.
>>
>> Right now its a happy little -84dBm. Its having a good day.
>>
>> 30 metres is pretty tough for a pi.
>>
> I just checked the WiFi signal strength using an Android tablet right
> next to the Pi Zero and the better of the two SSIDs is around -70dBM
> so it **should** be OK I would have thought.
> 

I get up to 20dB variation. Try rebooting it and see if you can get it 
back on target
-- 
Climate is what you expect but weather is what you get.
Mark Twain

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How to wake up the WiFi on a Zero 2W (it was working but has stopped) Chris Green <cl@isbd.net> - 2026-03-18 12:55 +0000
  Re: How to wake up the WiFi on a Zero 2W (it was working but has stopped) The Natural Philosopher <tnp@invalid.invalid> - 2026-03-18 13:12 +0000
    Re: How to wake up the WiFi on a Zero 2W (it was working but has stopped) Chris Green <cl@isbd.net> - 2026-03-18 13:56 +0000
      Re: How to wake up the WiFi on a Zero 2W (it was working but has stopped) Chris Green <cl@isbd.net> - 2026-03-18 15:45 +0000
        Re: How to wake up the WiFi on a Zero 2W (it was working but has stopped) The Natural Philosopher <tnp@invalid.invalid> - 2026-03-18 16:22 +0000
          Re: How to wake up the WiFi on a Zero 2W (it was working but has stopped) Ian <${send-direct-email-to-news1021-at-jusme-dot-com-if-you-must}@jusme.com> - 2026-03-18 17:48 +0000
            Re: How to wake up the WiFi on a Zero 2W (it was working but has stopped) Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-03-19 00:31 +0000
              Re: How to wake up the WiFi on a Zero 2W (it was working but has stopped) Ian <${send-direct-email-to-news1021-at-jusme-dot-com-if-you-must}@jusme.com> - 2026-03-19 09:00 +0000
      Re: How to wake up the WiFi on a Zero 2W (it was working but has stopped) The Natural Philosopher <tnp@invalid.invalid> - 2026-03-18 15:50 +0000

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