how to run a profiler on internet connection?

Hi all...

i'm using an internet connection. from past one month it is frequently disconnecting. (for example for every 2 or 3 minutes.) i want to keep history of disconnecting and re connecting in to a text file with time. so that i can show the evidence to my internet service provider. plz some one help me
How to track my internet connection's connectivity ? i want it in to a text file
is there any special counter for tracking internet connection in performance tool (which is in administrative tools)