I’ve tested for days an Electron in a town succesfully and now after moving it in a different place it has problems connecting to the cellular network and even when connected it seems it can not send data.
I’m using a third-party SIM (thingsmobile) that works with all operators.
I’ve found that when in the town it was connected to ITAWI operator (Wind) and after moving it was connected to ITAOM (Vodafone). We know that Vodafone there has some problem even with phones, but we are pretty sure there are other carrier that works well (Wind / Tim / tre).
Question is there a way to skip the ITAOM operator?
How the cellular choose the best operator to connect with?
In system firmware 0.6.x and 0.7.0 and at least through 0.8.0-rc.3 the keep-alive setting is tricky to do properly due to a bug. You can only set the keep alive after Particle.connected() has returned true, otherwise it does not take effect.
Also, I’m pretty sure if Particle.connected() ever returns false (you’ve disconnected), you should call Particle.keepAlive() again after the connection is reestablished.
Otherwise, the setting won’t stick and will make it impossible to send data from the cloud to the device.