If you get the error M7111-5059 with this message:
You seem to be using an unblocker or proxy. Please turn off any of these services and try again. For more help, visit netflix.com/proxy.
It means your device or network connects to Netflix through a VPN, proxy, or unblocker app or service.
To learn about using VPNs with Netflix, how to check if a VPN might be active, or how to get help turning a VPN off, go to Watching TV shows and movies through a VPN.
These steps can often fix the problem. After each step, try Netflix again:
Turn the VPN app or service off
Reset the network settings on the device having the issue
Restore your modem or router to its default settings
If you're still having a problem but don't use these apps or services, or if you turned them off, contact your internet service provider to help:
Find out why your internet connection might show VPN or proxy activity.
Update your IP address or get a new IP address that matches your current location.