The URL tplinkwifi.net resolves to your router’s gateway IP address. If the URL is not working you can try and use your Router’s gateway IP. The data transmitted between the browser (client) and tplinkwifi.net (server) remains safe and encrypted. No one else could decrypt the data except the client and the server, because the server uses a secure connection builder.The URL tplinkwifi.net resolves to your router’s gateway IP address. If the URL is not working you can try and use your Router’s gateway IP. The data transmitted between the browser (client) and tplinkwifi.net (server) remains safe and encrypted. No one else could decrypt the data except the client and the server, because the server uses a secure connection builder.