I am having a hard time setting up a home network on two Windows 7 machines. The situation is complicated by the fact that the internet access is via a USB 3G Modem device on the one machine.
The setup is two Windows 7 Home machines, one Desktop PC and one Laptop. The two are connected via ethernet cable to a router. There are not other devices on the router. See the image below:
( Bummer, not enough Rep to post the image - here is an ASCII alternative: )
I've managed to share the desktop's internet connection with the laptop. I've also got some file sharing and network discovery active. I've even convinced the laptop that this is a Home Network. However, the Desktop sees 3G Modem connection as a Home network, and the ethernet connection as "Unidentified Network". Win7 Home gives no access to SecPol so I can't change this manually.
The complication comes from the fact that the Router is not the default gateway. Had my internet connection been through an ADSL line connected to the Router, or had the Router been able to dial out the 3G, then I could set the Router as default gateway, and both PCs would recognise the network and be happy. However, I can't get the same result with the setup I have.
Please advise (in detail) on how to setup internet sharing, IP addresses, gateways and DNS servers to get this to work. I know HOW to set those things, I just don't know what to set them to.
If there is a better place online for me to ask this question, please also advise. This kind of setup is quite common in the 3rd world (I'm in Namibia) where most internet is via 3G, and I don't think it's unreasonable.