Ok, so your 'Local Area Network', or 'LAN', is controlled by a router, which will have it's own IP address, typically 192.168.xxx.xxx. This is quite variable depending on the router manufacturer. It will distribute IP addresses based on it's IP address, so if your router's IP address is 192.168.1.1, then each device that it finds connected to it will be given and IP address following, i.e. 192.168.1.2, 1.3, etc.
A DNS address as far as I understand it is like your router IP address only for your ISP instead, and is part of a 'Wide Area Network', or 'WAN'. So when your router connects to your ISP it's like your router is now a computer on the WAN, so it will be assigned a 'Gateway Address' just like your computers getting their own LAN IP address from your router.
Now in order to fix an IP address on your Uniti we need to know the following addresses. Subnet Mask, Gateway IP, and DNS. You can gain all of this information from your router, so if you can find the IP address of your router simply enter that into your web browser on your PC and it should take you to a router admin page. You will need to know your router's Username and Password, if the router was provided by an ISP they should be able to tell you this with a simple phonecall.
Once logged you should be able to find the information you require as above. One other point I would like to make is in regards to 'DHCP', which is the part of the router which assigns IP addresses to your networked devices. I would set this to start at a higher point, allowing you to set an IP address on your Uniti before the DHCP stuff kicks in. As an example, set that to start from something like 192.168.x.100, and set your Uniti to 192.168.x.2. This means that the router will not try to assign 192.168.x.2 to any other devices, therefore avoiding any IP conflicts.
There should be atleast 2 DNS addresses, write both of these down for use with the Uniti.
Configuring the Uniti is easy, simply enter the setup (little spanner symbol on the remote) and then go down to 'Network Settings'. From here you switch DHCP to 'No' and then come down to IP Address, and input the IP address following directly after the one belonging to your router. Under 'Mask' input the Subnet Mask, under 'Gateway' input your router's IP address as this is often variably assigned by your ISP unless you specify that you require a Static IP address. The input the 2 DNS addresses that you have previously written down.
From here you should be good to go, hopefully you don't find this too wordy!
J Saville
