My Spark Core connects fine and without problems to my Modem/Wifi Router (a Cisco). However, I am having trouble connecting to a router (being used as wifi access point) on the same network. The router in question is a TP-Link WR740N. I am factory resetting the Core so that it starts flashing Blue. I unplug it and replug it in for good measure. Then I try to get it connected to wifi using the Android app on my phone (like I did for the Cisco). The Core starts blinking green and stays like that. Meanwhile, the android app says “no cores found”.
I have read around that it could be something to do with the android phone (a Samsung Galaxy S3 mini) using 5GHz rather than 2.4GHz but I don’t know how to check if it is the case and the router does not seem give me the option to choose (or maybe it is hidden under another setting like 11b/g/n).
So far I only find trouble shooting guides where the Spark didn’t work right out of the box. But in this case, it is clear that the problem is not with the Core, or at least not entirely.
Any guidance appreciated.