The 2 MB Globelines Bundle

I am using a 2 MB bundle from Globelines, and indeed it was a 2 MB. Not the speed. It goes like this.. just when the clock strikes two (or sometimes earlier), my connection becomes a 2MB, 2 minutes back, 2 minutes bye bye. Almost every two minutes the connection is disrupted and I had to reset the router. Two minutes of surfing then gone again. My favorite phrase for the day, the week and even for month is Page Load Error. I have been seeing a lot of it. The connection is OK during the night, which is by the way, a not OK time for me to surf. I still have to cook and feed my family. Afternoon is the optimum time for blogging and surfing. Can somebody tell me why my connection is conspiring against me?