IP Address Error when using Internet Connection Sharing

I am going to college soon and I will not be able to connect to the campus's WPA-2 Enterprise secured network, so they suggest using ICS for consoles such as the Xbox 360. I am testing this out at home while using my 360, and I have run into some problems.

Currently, I have it set up like this:

Modem > router > desktop PC (via WiFi) > Xbox 360 (via Ethernet plugged into my mobo Ethernet port)

When I try to connect to Xbox Live, I get the "IP Address Error" notification. I have followed, to the best of my ability, the instructions on these three pages:

How to Connect Xbox 360 to Xbox Live Without a Router

http://windows.microsoft.com/en-us/windows/using-internet-connection-sharing#1TC=windows-7

Xbox 360 Can't Connect to Xbox Live

I have restarted my Xbox and my LAN adapter, I have manually set IP addresses and such, and I still cannot connect to my home network.

Please help.

:)

 

Connecting to Xbox LIVE

After manually typing in the IP address, the internet connection sharing finally worked. Thanks guys.

 

Internet Connection Sharing

I connect to xbox live by connecting xbox to laptop via ethernet and share the laptop's internet connection using internet connection sharing in Windows 7 Home Premium on my HP Pavilion dv6 laptop. This has worked perfectly until now when the xbox is unable
to make any connection to the internet and xbox live. I can connect to the internet on my laptop using the public network provided by the landlord for the whole apartment building, using a 3G dongle and using my iPhone as a wi-fi hotspot - all of these have
worked in the past for accessing xbox live.

The messages I get from xbox on testing the connection include:

- can't connect to network hardware using a static IP address (nothing is using a static IP address, all connections are set to automatic).

- turn your router off and wait 30 seconds (I have no router as I am using internet connection sharing).

- can't obtain IP address from your router or modem.

- your router or modem is assigning IP addresses automatically try a static IP address instead (despite the message above telling me not to do this, I have set the network settings on the xbox to match those in the support pages for internet connection sharing
- no connection resulted).

I have tried to create a network bridge but this results in a connection to xbox live which does not allow online gaming or access to any of xbox live useful features - whether I connect to the public wi-fi network, use the iPhone as a hotspot, or connect
to internet with the 3G dongle.

I have also created a home network and shared my internet connection with it. The xbox can connect to the home network but still cannot connect to the internet or xbox live. I tested the home network with my iPhone and this could access the internet with
no problems.

I also have an old laptop running Windows XP and internet connection sharing does exactly the same as above.

Any ideas would be gratefully received.

 

I just realized something. Do you need a switch/router for ICS? Should I be bridging connections when plugging DIRECTLY in to the Ethernet port?

 

I was wrong. I figured everything out. I had not selected my Local Area Connection because I enabled it after enabling ICS. Neither ICS nor bridging require anything more than an Ethernet cable.

 

I figured it out. I had enabled ICS prior to enabling my LAN. Neither a switch nor a router are required for ICS and bridging.

 

[quote user="Phantom MP7"]Do you need a switch/router for ICS?[/quote]Nope! What you need is some type of connectivity to the Internet-at-large.

[quote user="Phantom MP7"]Should I be bridging connections when plugging DIRECTLY in to the Ethernet port?[/quote]Try to create a bridged connection, to combine your two network connections and let us know how that goes.