Yes, I have verified (on numerous occasions) that it is being forwarded to my computer/IP address instead of someone else's. My servers.ini file is recent and I am certain the servers to which I want to connect are listed correctly.

For what it's worth, here is how we're set up -- it's a wireless modem with four slots for wired connections. Two of the wired slots are in use (on my computer and on the computer in the room in which the modem is installed); also, five others are using the wireless connection. I am wired because it is set up in a large, old house and the signal strength is simply inadequate in my room, so I am connected through an ethernet cable running outside of the house.