Non-document RGB error blinking

My Photon is connected to the LAN, as arp -a lists it, but fails to connect to Particle cloud.

The sequence of the RGB is the following:

  • Blinking cyan,
  • brief red,
  • green for 2 seconds,
  • and again

I went to STATUS LED - PHOTON - Troubleshooting Modes to no avail.

Thank you for your help!

You mean that?
Status LED and Device Modes - Photon | Tutorials | Particle

The following green doesn’t belong to the previous code but rather is the lead-up to another cyan - red cycle.

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Thank you for your help.

After some research, the red blink seems to be caused by a memory overflow.

Of the 128 kB RAM, only ~50 kB are available. When free memory is lower than 4 kB, the board crashes and fires the red light.