How to make scheduled task for diagnose & repair internet?

My internet connection loses connectivity maybe once in 2 days. I'm down from internet and local to local only. I have to diagnose & repair -> get new settings to fix it. It usually happens late in the evening and cuts connection until I wake up and diagnose & repair it.

I need something to automatically repair it when it goes down. I wonder if theres a way to set task scheduler to repair it automatically?

I tried some network monitor softwares but none of them did what I needed...

plz help

looks like its not possible, watching the Event monitoring thingy there seems to be no events associated with Vista losing Internet connectivity, can't do this bummer.

I already had a .bat file ready that runs Ipconfig -renew. It does the same than diagnose and repair.