wi fi - "Avoided poor Internet connection" even though signal strength, speed is great

My phone keeps disconnecting from the WiFi network, saying "avoided poor Internet connection"... but I'm less than 20 feet from the router. It shows full bars while connected and the speed is fine. How can I make it stay connected?

Answer

Figured it out...go to the WiFi settings, hit the menu key and choose "Advanced", and uncheck "Avoid poor connections".