I have a strange problem with my Ubuntu 14.04 system.
If my laptop is not connected to a power source, and I plug in my ethernet cable, the system restarts.
It's an AMD processor with ATI radeon graphics.
I have a dual boot system with Windows8, and no such issue is encountered while in Windows. I had Ubuntu 13.10 prior to 14.04 and did not face such a problem.
Any idea what could be causing this issue?