Raw connection speed and VPN performance are the keys to watching Netflix in HD and UHD. But there are also things you can do to get the maximum performance from those key factors. First, Choose the VPN server you connect to with care. The VPN services we recommend all have fast, reliable VPN servers so that isn't an issue. The issue is the location of the VPN server you use. You get the best performance and reliability by using the VPN server closest to you. But you must also choose a VPN server that is in the correct Netflix region. Here's an example. You are in the UK on vacation. You want to watch your favorite show on US Netflix, so you need to connect to a US VPN server. The server you choose is critical here. If you look at a map you can see that New York is around 3,000 miles closer to the UK than is Los Angeles. A New York VPN server will give you better results than a Los Angeles server would. Second, you may want to try different VPN server locations. This is despite what I just told you about the VPN server location. It is possible for the servers in one area to get overloaded with users. Or for a natural disaster to take out part of the server network. If you find that the VPN server you are trying to use isn't performing well, you can contact customer support. They should be able to direct you to a different server that will get you streaming again.