Some governments implement nation-wide internet censorship systems. Usually, this is supplemented with VPN service blocks, making it harder for residents/tourists in those counties to bypass the censorship restrictions.
In such countries (i.e. China, the United Arab Emirates and/or Saudi Arabia), NordVPN applications may not work - however, we have several alternative connection methods which you can use to freely and privately surf the net.
On Windows, usually you can easily bypass restrictions by logging into the NordVPN app, going into the advanced settings, and enabling "Obfuscated servers". Then, simply connect to one of the available servers.
On other devices, the most common connection method used is a manual VPN configuration of the OpenVPN connection protocol, or the L2TP protocol with some specific settings - please contact our Support Staff for assistance in connecting from restricted countries: https://nordvpn.com/contact-us/