Well, You can always try to fix some Netflix errors by the new approaches.

Check these two articles, may be this will help you to fix the errors.
https://itechhacks.com/fix-netflix-error-code-nw-3-6/ and https://itechhacks.com/fix-netflix-error-code-nw-2-5/

Thanks for your time.

There could be multiple reasons behind this

• Make Sure You (and the Server) Are Online

• Try Connecting on a Different Network

If you are using FREE VPN then there must be some settings and updates that you can try.

There are multiple VPNs available in the market try to test them and see If they work or not.

Thanks