Hi,
Seems that you've been experiencing with IP or MAC Address blocked by worse, both are blocked by the website. You can do these steps to solve your problem:
1. If you use Google Chrome as your default browser, install Proxy extension or hide IP. This will solve your problem if only your IP is marked by the website scanner. (Free & Paid)
2. User Tor Browser. This browser allows you to surf internet as an anonymous surfer (Free)
3. Use VPN, free or paid subscription of course. You also can find VPN extension in Google Chrome.
4. Tethering with your mobile phone, this also can solve your problem, if only your IP is blocked. This can solve both IP and MAC Address blocked problem
5. Find Hide My IP services or software, there are many free and paid software or extension like this.
5. Ask your ISP to change your IP, you may need to pay for this.
6. Buy another network module or card for your computer or buy mobile modem, this will solve your IP and MAC Address blocked problem.
7. If all are still blocked, re-install your windows.
Hope this can help you to solve your problem