Internet Connection Sharing not working

[The_Assimilator]

My home network is setup like this:



The wireless router is an ASUS WL-520G, the wireless network adapter is an ASUS WL-169gE, the ADSL modem is a D-Link DSL-300T. The network itself works perfectly - all computers can see each other, access each others' shares etc.

I have tried setting up Internet Connection Sharing as explained in this guide - while the "host" computer connects to the Internet with no problems, the "client" computers cannot connect at all. After I set the options "Obtain an IP address automatically" and "Obtain DNS server address automatically" on the client computer (as per the above guide), the client computer's network connection doesn't work - because it can't get an IP address.

If I enable DHCP on the ASUS router, the network connection is fine, and I get the following in Network Connections:



but when I click the "Internet Connection" icon to enable it, it disappears for a few seconds then reappears, still set to "Disabled".

I'm wondering if the problem is because I have RASPPPOE installed on the host computer, due to the fact that I'm using Route Sentry to manage my international/local ADSL accounts?

Has anyone with a similar setup, and using dual ADSL accounts, had success with ICS? Any and all help is greatly appreciated!

 

[Xarog]

Err, how is your PC and your brother's PC connected to the adsl modem, exactly?

Without knowing that, see if you can set the modem/pc with the modem to being the dhcp server, with the wireless router being a dhcp relay agent.

 

[The_Assimilator]

Both PCs are connected to the wireless router, which is connected (wirelessly) to the fileserver / gateway, which is connected to the ADSL modem.

How does one set the router to be a DHCP relay agent?

 

[dabouncer]

Set some static ip's in the same range as your routers. Then get http://www.analogx.com/contents/download/network/proxy.htm to handle internet sharing or http://www.winproxy.com/products/ is another fine proxy.

 

[Xarog]

Both PCs are connected to the wireless router, which is connected (wirelessly) to the fileserver / gateway, which is connected to the ADSL modem.

How does one set the router to be a DHCP relay agent?

Should be a setting in the router's settings itself... Usually around the same area of the config page where you change the IP or turn DHCP on or off.

 

[Rocket-Boy]

Most routers tho seem to disable DHCP related services when set into bridge mode which it would have to be for route sentry. A proxy would probably be the easiest way to connect it.
Are you initiating connections for both local and int accounts from each of the pc's?