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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Gordon
Thanks - I'm pretty sure:
Is actually because the board has reset while trying to connect, so I'd be pretty sure this was a power issue (especially as it's affecting both boards). I've never seen it so bad though - maybe it's having to use more power to transmit to your WiFi network than it is to the network I've tried.
Come to think of it, have you tried connecting to a different network? Maybe put your phone into mobile hotspot mode and try that?
Do you have an oscilloscope that you could look at the 3.3v line with so you can see if it's fluctuating.
1 or 2 uF might not cut it. Any chance you have a 47uF or 100uF capacitor kicking around, just to make sure? You can solder through-hole parts into the 2 (of 3) holes nearest where the capacitor goes (one nearest the ESP8266 is GND).