Netflix’s catalogue of shows for each country and region is different. This is due to the company trying to offer up more localized content, and we imagine that there are also probably licensing issues. This is why some shows in the US might not necessarily be available in another country like Japan.
However, users have been using VPNs to try and get around this, and for the most part it worked, but it seems that Netflix is trying to clamp down on VPN usage which has resulted in innocent users getting caught in the crossfire.
Basically how it works is that VPNs make Netflix think that you’re originating from another country. In order to clamp down on that, Netflix blocks IP addresses that they know or suspect are VPNs. However, non-VPN users are finding that their Netflix account is suddenly missing a lot of content, which many have started to speculate could be due to Netflix blocking addresses, some of which might be tied to an ISP, which in turn affects users who are assigned that address.
According to Netflix’s solution, “If you disabled proxies, VPNs, or other routing software but still see this message, contact your internet service provider. They’ll be able to determine why your IP address is associated with proxy or VPN use.” However, the company does not mention what you should do after that.