I have a C7 Elevation at 2.4.3.167. I've performed a full factory reset, which completes successfully, and the C7 returns without any devices mapped. This behavior started yesterday morning (prior to that this device has been working very well without issue).
At first, I'm able to access the hub as expected, both via the diagnostic page and the typical management console. After a couple of minutes, I get notifications about severe system load. After another couple of minutes, the device becomes unresponsive -- neither the diagnostic page nor the management console will load. The device is still showing the green LED.
Bear in mind that this is a completely new install with everything removed, no apps, no integrations, no devices.
I'm able to get this freememoryhistory output before it completely hangs up --
Date/time,Free OS,5m CPU avg,Total Java,Free Java,Direct Java
12-05 08:29:18,694232,0.36,331392,254903,269
Here's some screenshots from just before the system becomes unresponsive:


