You will require a WIFI or broadband internet connection (DSL/cable or higher) with a minimum download speed of at least 1.2 Mbps for SD and 4 Mbps for HD, with latency not exceeding 100ms for SD and 50ms for HD (mobile data may not be supported).
If you're travelling abroad, please use Wi-Fi or broadband to purchase and view a pass. This helps avoid extra charges and keeps your pass fully compatible (it allows the country you are in to be recognised as a selected territory).