On 24/05/2020 16:30, David Taylor wrote:
> I recently had an RPi where the Wi-Fi wouldn't connect after a
> power-down reboot.  No settings were changed, and I could see DHCP
> requests going out.  Didn't have the time to resolve it, so used
> Ethernet instead as a connection was to hand.  Other RPi cards on the
> same network have rebooted with power-down multiple times without problems.
>
> However, I've just had a second RPi with the same problem (and same
> solution).  No configuration change, but no Wi-Fi connection.  These RPi
> are both model 1B.
>
> One other change has been adding a second access point (2 GHz) with the
> same SSID.  I've read that this is OK and the device will simply pick
> the strongest signal and connect to it.  Certainly the 5 GHz devices
> such an a iPad, RapPi-4B and Pixel 3 phone.  don't seem to be affected
> (different SSID).  I'm using a separate router connected to my wired
> LAN, and the two access points are connected to that LAN.  No combined
> ISP modem/router/Wi-Fi box involved
=========================
Fixed - turned off the 2nd 2G network and the two RPi cards reconnected
to Wi-Fi.  They were both model 1B running Wheezy, with Wi-Fi adapters
purchased around the same time.

--
Cheers,
David
Web: http://www.satsignal.eu

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