My problem: My Core used to connect, but I put it on the shelf for nearly a year, as life got in the way. When I took it back out for my new project (A Sparkfun Photon weather shield) it wouldn’t connect. It turned out my Core was two firmware updates behind. Finally, after the 2nd update, I did a PARTICLE SETUP and it logged right in.
I don’t use a Hex passphrase, and my router is running WPA (Not WEP, sorry, that was a typo in my earlier post. WEP can be cracked in seconds now) And I could never get a connection using my chip and WPA2, even though my other computers are using it just fine. I also have my router security set to high, and no outside ports are open.
Is your network’s SSID being broadcast? Mine is. I don’t know if that has any bearing on your connection issue, but the more things you can easily try, the better chance you have of finding a solution.
One possible suggestion: Does your router support either multiple SSID’s or a “Guest Mode”? Most do,in order to create a “guest account” or a 2nd network for people you know, but also keep them out your main network, shared drives, etc. You can find that in your router’s wireless settings - Mine (Actiontec DSL) was in the “Wireless Settings - Multiple SSID” tab. Create a totally new SSID, with a different, non-Hex password. On my router, I can have four of these, all active at once. Once you have a 2nd SSID up and running, connect to it with a smartphone or some other device, just to prove it works before you try it with the Photon.
Let me know how this goes. Wising you great success!