I'm using a B board as a headless print/scan server with Cups installed on Arch. The pi is plugged into a linksys router with DHCP, but i'm using the "Reserve IP address" feature on the router to ensure it has a consistent IP address. I'm powering it with a Samsung 1A micro USB phone charger.
It works fine, but the problem is that after a long time has passed (overnight, or at the end of the day) the Pi doesn't seem to be connected. Normally, all the LEDs that should be on are on, but there isn't any blinking. I have no access to a screen, so I'm not sure how I can check if the Pi is even on at this stage, since it doesn't respond to pings or SSH and it doesn't seem to be on the Client table. At this point, I usually just unplug it and plug it back in and it works for another while, but obviously this isn't ideal. Any suggestions?