Overall I'm extremely impressed with Kali - have installed it on several machines, incl amd64, 386, and Raspberry Pi...

One box, however, has networking issues. The Network Manager dies every few minutes and must be restarted (/etc/init.d/network-manager restart). This does not appear to be a wifi issue as the wifi remains connected and the interface appears to be up, but no packets are sent/received.

Anyone have any ideas?