AutoRuning a NIC disconnect script

I’m sure this is a simple question but when things are too simple it is tough to find an answer. My network connection somethings diconnects and the only way to fix it is to repair the network connection. I wanted to automate this and I found this script/bat file:
https://www.techrepublic.com.com/5208-6230-0.html?forumID=101&threadID=211076&messageID=2169996

It works awesome but how do I make it run in the background every say 120seconds so when I come back my connection will always be working?
I’m using windows XP pro SP3.