I've just installed Wheezy on my pi and have set it up as a NAS and download box.
If I'm actively using the pi like listening to music or watching videos off the external hard drive I have no problems.
When I leave the pi idle or downloading a file from the internet without watching it, it eventually vanishes from my network (I'm running it headless) and I have to restart my pi. Ideally I want it running 24/7.
When its not on my network there is only the power light on the board and my wifi dongle flashes slowly and consistantly as if its in power saving mode?
Is there any way to stop this from happening, any help would be great.