Internet Sharing Problem

Hopefully someone can help with this i'm stumped.

Just had Virgin Media Installed today (Cable), connected up to my main pc via the lan port and all working fine, (20mb connection...yey)

Then my issues started.

I need to share this connection over 2 PC's and 1 Laptop. All are running XP Pro with SP2. The router I am using is a Belkin Pre-N router with adsl modem included. (I would rather not shell out for another router suibtable for cable as the Pre-N is lightning quick and to match that its gonna set me back another £85)
Now I obviously cant plug the cable modem into this router to share the connection that way so I have connected the cable modem to my main PC and I need then to share this out to the other two via ICS (Or is there another way ???)

Ive set up a new wireless (128wep) network, all three putes are connected to it fine. Have set up a network on the main PC that shares the internet connection. And have set up the other two to conect to the internet via another computer. Network seems to be fine. All 3 are visable to each other file sharing etc is all working fine.

But the only thing that is not working is the ICS. I get the internet fine on my main pc but its not sharing it to the other two.

Any suggestion's guys and gals.

Ive tried the following already : Disabling all firewalls, although they can all ping eachother so i dont think its a firewall problem. Have fixed the winsock element cos originally had a problem with router not renewing ip adresses.

Ive searched through forums galore but cant find a solution.

Thanks for any comments in advance.
Rob

 

1. You can buy a very inexpensive wire only Router use it to Route and connect the Belkin as an Access Point to the wired Router.

Wireless Router as an AP - http://www.ezlan.net/router_AP.html

 

Yea thats an idea. Didn't think of that. If all else fails i'll go with that.

Anyone else got any ideas, i'm pretty sure its just a simple setting that ive overlooked.