Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Chris Green Newsgroups: comp.sys.raspberry-pi Subject: Re: How to wake up the WiFi on a Zero 2W (it was working but has stopped) Date: Wed, 18 Mar 2026 13:56:10 +0000 Lines: 38 Message-ID: References: <10pe8cj$3rg2l$2@dont-email.me> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Trace: individual.net zKmx/jznUdJ5DnuJQfOBCAbvsUsH1QP+dt/P0macyBcjNN0NY= X-Orig-Path: not-for-mail Cancel-Lock: sha1:Y6wIV5SfBdvHWphAJ6ME1I4UDv8= sha256:Q2gHyFX9CnwsQJDyQm5+fyAm2ag6tmulpDuHEBP6kzE= User-Agent: tin/2.6.5-20250409 ("Helmsdale") (Linux/6.12.63+deb13-amd64 (x86_64)) Xref: csiph.com comp.sys.raspberry-pi:37869 The Natural Philosopher 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. > 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. -- Chris Green ยท