what is an ack?

[skysidhe]

Lately I have noticed an intermittent blinking of my wireless light and modem lights when no one is on the computer.

I have since been checking the DHCP client list for my router.

This one is a continual.

sending ACK to 192.168.2.7

It's not my ip apparently it's a wii. How do I know if it is my wii and why does it appear when no one is on the wii?

I know about entering the mac address to the security info for my router and have not done it yet.

I am assuming once I do and can stop public broadcasting this ramdom acking will stop?

I tried unclicking that public broadcast option but am unable to connect the laptop without it.

I do have a firewall that is monitoring the router as well.

Does the wii server just continually talk to the router?

Thanks ahead for any opinions.