Wifi connection- false start-ups

Hello, I have a rooted android tablet running Honeycomb. The first few days of using it, it connected to wifi just fine on the first try. Now when I turn on the wifi, I have to turn it off and on again a few times before it will actually connect. It says its connected and that the signal is excellent, but when I try to open my browser or anything else web related, it says there's no internet connection. Even though it shows that its on each time, its really not. After turning off/on again a couple times, then it actually works. Just kind of annoying. Any idea what causes this and are there any fixes? Thanks!