When setting up your Roku for the first time, please follow the instructions located on our website: http://www.getflix.com.au/setup/roku - it is very important that you follow these instructions exactly. Roku can easily detect you as outside of the USA if these instructions are not followed correctly.
Blocking Access to Public DNS Servers
The Netflix and Dishworld apps on some Roku devices (Roku 3 and Roku Streaming Stick) are hard-coded to use Google's DNS servers. The good news is that if you block access to Google's DNS, it falls back to the DNS servers configured on your router (ours!).
See the instructions here: Block Public DNS Servers
Alternative Instructions for a US/UK Roku Account
When you first set up your Roku account, the key point is that your location it sees you are connected from will determine the channel options available. The physical address you enter is secondary, and won’t have any impact.
So when you create your Roku account, the most reliable way to have your location correct, is to use a VPN service temporarily to either the US or UK. We recommend a free tunnelbear account.
Simply select the location server you want (Select GB for UK account setup, or US for US account setup).
When you visit the Roku site, you should be able to tell from the main screen that you are, in fact, in the correct country account (the channels being promoted will be uniquely US or UK). Then you can continue with your sign-up. You will also need to use a US or UK address (Google searching for real estate should be able to help you get an address in either location).
If you wish to change in future, you will need to create a completely new account, with different credit card/payment details.
On the Roku, you must do a Factory Reset to log into a different Roku account. Because of this, you cannot have both channel stores running simultaneously on the Roku, so it is best to chose the one with the most relevant channels for your viewing (or get a second Roku device, so you can have one Roku for each country).