Originally Posted by CarrollRobbins
On your computer open a command window and enter the command ipconfig. Note the Subnet Mask and Default Gateway.
On your receiver go into Network Setup. Disable DHCP. Set the first three numbers of IP Address to the first three numbers of Default Gateway and set the last number to 11. Eg., if your Default Gateway is 192.168.0.1 then your IP Address would be 192.168.0.11. Set the Subnet Mask on your receiver to the Subnet Mask from your computer. Set the Gateway on your receiver to the Default Gateway on your computer. Set the DNS Server on your receiver to the Default Gateway on your computer. Leave Proxy URL blank.
So far so good, but what happens when his DHCP server tries to issue 192.168.0.11 to another device on his network? Then he has two devices that won't work. If you're going to use static IP addresses, you need to use an address that is not in the range that your DHCP server will issue.
CBdicX, IP addresses are actually very simple. An IP address is not unlike a phone number. The difference is that the digits in an IP address are separated by a dot (.) rather than a dash. So, imagine that every computer in your house has a phone number that starts with the same digits. Hypothetically, let's look at a network with a few devices:
Office Computer - 192.168.0.10
Kitchen Computer - 192.168.0.11
Laptop Computer - 192.168.0.12
Onkyo TX-NR78 - 192.168.0.13
If one computer wants to talk to another, it "calls" that IP address on the network. Your router is the "operator" on your network, and is often called the "default gateway". The "default gateway" is where calls are routed when they don't match the "subnet mask". In the case of most home networks, the subnet mask is the first three groups of numbers, so a call to 22.214.171.124 would fail to match the local subnet, and would be sent to the router to be passed along to the internet.
Back to your netowrk. Notice that the first three number groups are identical. Only the last set changes, and can range from 1-254. It's important to note that IP addresses do not need to be contiguous. The ending digits above could very well be 100, 104, 110, and 118. The "DHCP" server is just a means of automatically assigning IP addresses on a network. It manages IP "reservations" so that the same IP isn't used twice.
99% of home networks use a similar network configuration, so it's usually pretty safe to make some assumptions. One of those assumptions is that all the IP addresses on your network will have matching numbers in the first three groups. This is why you only need to change the last group.
If you know how to log in to your router, that is the best way to pick an IP address. You'll find a screen in your router that tells you what the DHCP address range is. Usually it's 1-100 or 100-150, or something similar. Just pick a number outside that range and go with that when configuring your receiver. That should eliminate any chance of conflict.