I have had my Linux box connected to the internet through a Windows computer by wiring them together with a cat5 cable then the Windows is connected wireless to a router.

This setup has worked since I got the Linux box but just yesterday stopped working. The changes that occurred were:

I changed networking so that I was connecting the Linux box and Windows computer through a second router so during that time the Linux box went through a router to connect to the Windows computer that was still connected wireless to the first router.

The Internet didn't work on the Linux box at the time they second router was involved when I removed it and directly connected the Linux box and Windows the Internet worked again.

Another thing that changed was that I had disconnected my Windows computer from all network connections and deleted them to make my Ethernet work better. Also at that time my dad had I connect the Windows to a third router and changed some settings in it.

After reconnecting this time the connection between the router and the windows would not establish. If anyone has any ideas as to why this is I would greatly appreciate it!