Photon setup results in solid Magenta LED

I have tried the following:
Setup Using Tinker: resulted in (presumably) failed update to firmware. The device did blink cyan, which leads me to believe the network connection was successful. After a few seconds of blinking magenta, it turned to breathing magenta.

Setup Using CLI: After holding the setup button to activate listening mode, the device was recognized, and I began setup mode, but the device did not successfully connect to my network before changing to breathing magenta.

Using the CLI, the prompts said the device successfully stored the network credentials, but the status light immediately switches to breathing magenta. The device appears offline from the Build menu.

Next, I followed the tutorial found on the

[Howto] Setup photon if docs step fail

page. I could did claim the device to my account, but when I use “particle list”, the device appears offline.

That’s all I’ve done so far.