Not sure if the question is correctly phrased. Here's my setup: because I'm moving around a lot,, I don't have fixed line Internet access (such as ADSL). However I have a LAN for interconnecting a number of machines - through 100Mb cables. To access the Internet, I use one of those pocket-WiFi devices that allows up to 5 devices to be connected and uses mobile broadband (3G and HSPA). what I'm finding is that if I'm connected to the local network, I can't connect to the Internet on the same machine.
Some research on this site suggested that by adjusting the routing cost, I could get the WiFi link to be preferred. It also suggested I should remove the gateway address. I couldn't figure how to do this (as it was a DNS setup so I changed the actual gateway address to a different one than in the properties.
It seemed to work (at first), but now it seems to not work (intermittently). I'm using Windows-7 (predominantly)
My question is, given my setup, how can I set up the two NICs (cable and wireless), so that if look up an internet address it will use the WiFi and if I want a local address it will use the cable?