On Dec 16, 2011, at 12:05 PM, Blaine wrote:

In short: Does anyone have a known working overo image that does not have wifi time out? I really feel dirty running a "ping -i 60 google.com" in the background just to keep wifi working.

Specifically this image has the following property:
  1. Does not turn off wifi after 2-3 minutes of inactivity.
We rolled our own image and do not have that problem. However, I have noticed that it won't even try to associate with an AP unless you try to ping an IP before associated. I know it's backwards, but that's what we've seen. Also, we've noticed that wpa_supplicant sometimes refuses to connect to a preferred access point in its configuration if the last access point it was connected to is in range. The only way to overcome that was to put an invalid passphrase for the unwanted network.