From what I’m reading, you’re using WEP long HEX password and you’re having issues?
If so, this is fix that is temporarily out of our hands (from what I’ve heard). We are currently working with Broadcom, very closely, on a deep firmware upgrade for this fix. I will post here when a solution is worked out between us.
Also, be aware that setting the Photon up on a 5GHz network is not viable/supported.
Last, check out our new awesome docs: https://docs.particle.io/guide/getting-started/start/photon/
-Corey 