This isn't always the best thing to do, but it's a fix if your IP was put on a "so called banned list. It's called spoofing your mac address and it will force the ISP to give you a new ip address.
1. You must go into your router.
2. Enter the setup section.
3. Select MAC address.
4. Select user defined.
5. Change a few numbers and letters in the MAC address.
6. Save settings and reboot your computer and reset your MODEM.
The best way to see if this will fix your issue is, go to real-debrid website from your PC/MAC, can you hit it? If no, this solution should work for you.
This problem occurs when viewing the same site over a router from more that
one computer or application at the same time for a period of time. This
activates something in the server software that puts your IP address on a so
called "BAND LIST". Your web hosting company will not be able to correct it
because they don't know what is going on. They will say that it is
working fine from their point of view.