This resulted from using the “Connect using WPS” option and pressing the WPS button on the router.
I also tried many times the “Connect an Imp” using the method of entering the Network name and Password. In between times I also tried clearing down the wireless configuration which correctly resulted in flashing orange.
I’ve run the app on an iPhone in a darkened cupboard with the Imp held directly onto the screen next to the wireless router. The brightness of the iPhone is set to max. Since the clear down of wireless config seems to work OK it appears the flashing is being read correctly.
Note that all this worked fine until I needed to connect to a different wireless LAN. I’ve checked the password and SSID are correct and other devices have connected without issues.
After re-powering the Imp, red flashing “attempting to connect”, but no connection.
So I’ve tried all combinations of things I can think of. The most promising approach seems to be to use the WPS because at least this gets some green flashing during the blinkup and then the sequence mentioned above, but ultimately after the WPS times out the unit returns to flashing orange.
I’ve restarted the blinkup app to avoid a stale token problem and I’ve reverted the Imp code to the “Hello World” example to avoid code errors, although I wouldn’t have expected code errors since this was working until I changed wireless LAN.
I note from another post that the channel and wireless settings need to be valid for the Imp. The channel I am using is 13. I manually selected channel this following an issue with interference from other nearby wireless LANS and this resolved that issue but is 13 acceptable for the Imp? Thanks
I just changed my wireless channel to a value below 10 and this resolved the problem - Imp now connects correctly. Hopefully this might help someone else with a similar problem.
Yep, the “developer edition” imps are all US country code - channels 1-11 only. It’s not legal to ship a product in the US with channels 12/13/14 enabled.
If you buy commercial imps with the EU country code you get ch 1-13.