So, I'm going to explain this from the start.

I've started a project with a friend of mine which includes a webspider, that crawls through all pages on a site and stores them in a DB. Since I've never done this before, I didn't think about the amount of requests I was actually sending to the site, and after a day or two I finally got my IP blocked.

I need to be able to visit that site as it's very important to me. Not only for my project, but for other reasons too. (and if I'm able to renew my IP I'm going to set a delay on the crawler so I don't get blocked & DDOS the site)

I have a dynamic IP address, at least that's what my router settings say. I've tried ipconfig /flushdns, ipconfig /release, restart computer. No result. I end up with the same IP address. I've also tried renewing it from the router, however, I think it uses the same method which isn't working.

Is it possible that site has blocked my mac address? Can a site even access my mac address?