Yesterday I've received my Raspberry Pi, and there are some issues I can't get rid of...
After a few minutes (3-4 minutes to be exact) of seemingly error free work session through SSH, the network status LEDs turn off, the Pi freezes. It doesn't respond to any to any requests through the network, can't be pinged, also the same thing happens when I attach a keyboard/Mouse/Monitor and use these to access the pi.
I'm running the latest wheezy from an 8 GB Kingston SD Card, and tried 2 power supplies each capable of outputting more than 500 mA (700 mA & 1 A) and no overclocking.