Geek...
I am not sure I am explaining this properly. In the TV room, when the wired router is off, I have internet access, but no access from the EVA 8000 to the computer. With the router on, the EVA 8000 has access to the computer, but no wireless internet. What i want is wireless internet connectivity and simultaneous connectivity to the EVA 8000.
Basically, you want the EVA 8000 to magically connect to the internet through the Router, through the wireless NIC on the computer?
The only way to do so would be to use the Computer to bridge connections between the wifi and the Cat5 wired network, by connecting it's Ethernet to the WAN side of the wired router, and the EVA 8000 to the LAN side. However, the EVA 8000 will not be able to access the computer itself since it is not technically on the same network as the EVA 8000, which is itself on the subnet afforded the wireless NIC.
the best option would be to connect the EVA to the wireless router wired (assuming it has both wired and wireless connectivity) otherwise purchase a new router that does.
Dealing with a single network is enough of a pain in the arse- having subnetworks and trying to communicate between machines on different levels is like falling through a building. the more levels you fall through- the more painful it ends up being.