Setting up ICS with windows xp tp 8.1

Ok. So I was fiddling around and got this to work last night. Windows 8.1 is the host and it is set up correctly for ICS. The problem is with XP. I turned off the computer last night and then back on this morning and it now it does not work.

Here is what I want to do. I want to configure the ip addresses manually on the XP machine but I don't understand networking very well. I don't really understand what addresses I should use.

The NIC in windows 8.1 is manually configured (by windows) to have 192.168.137.1 and a subnet mask of 255.255.255.0

The NIC on windows 8.1 that talks to my router and the internet is a wireless NIC. It is configured with ICS on.

I don't think the settings are wrong on windows 8.1 (hosting the internet) because I accidentally got it working last night. I had set Xp to obtain IP address automatically. But it did not work. So then I was trying to manually configure it and was having no luck. My girlfriend said she switched back to auto and it worked. So we used it all night until we shut it off. This morning, it didn't work again.

So what can I do to make sure this xp machine is configured correctly every time I turn it on?

 

http://www.dummies.com/how-to/content/how-to-manually-assign-an-ip-address-in-windows-xp.html

this may help, this is something I have not done so I can give no personal experience tips.

==