@dc42 said in Wifi not connecting:
It might be worth measuring the voltage on the +3.3V rail, to see if it is within tolerance. The WiFi modules are fussier than other chips on the Duet WiFi about the supply voltage they get.
Is it the same ESP-12S module that we use on genuine Duets, or is it one of the older ESP-12 series modules?
It's the ESP-8266MOD.
It's been rock solid for a year before it played up. Now that it's working again and has been stable for the last couple of days, I'm reluctant to start poking around with a probe. It would be just like me to short it out.
If it plays up again I'll bear it in mind to check.