Kiwi Reddit users shared experiences of logging in to American Netflix through VPNs and being met with an error message.
"I've had a couple of on screen messages to the effect of 'it looks like you're using a vpn etc.', but I just refresh or change the server and it works. Watching US Netflix at the moment," one user said.
Another user said they changed their VPN from the US to Canada and the service worked again.
Netflix announced earlier this month it would be cracking down on users accessing geo-blocked content, and this week the company made good on their promise.
Some Australian users accessing the American catalogue of Netflix content through VPN provider uFlix have been greeted with a message saying "You seem to be using an unblocker or proxy. Please turn off any of these services and try again."
UFlix said the USA VPN was back online and working over the weekend, but warned customers that Netflix blocks would keep occuring and asked for people to let the company know, so it could stay ahead of the issue.
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David Fullagar, vice president of content delivery architecture at Netflix, announced in a blog post on January 14 that it would be cracking down on users accessing geo-blocked content through VPNs.
Fullagar said Netflix was working towards making all content available in the 190 countries it was working in.
"In the meantime, we will continue to respect and enforce content licensing by geographic location.
"We look forward to offering all of our content everywhere and to consumers being able to enjoy all of Netflix without using a proxy."
Many New Zealand Netflix subscribers have shared on social media their fears of the VPN crackdown by Netflix limiting their catalogues on the content streaming service to the smaller New Zealand catalogue.
Dozens of shows, including season three of Netflix-made House of Cards, are not available on the New Zealand catalogue.