Is there a way I can see my wireless network's internet history?

Your router should have a page that lists what sites were visited by what computers. How to get to that page depends on your router.

Or, download Network Magic, formerly from Pure Networks, now owned by Cisco, and you can set it to email you a formatted report on each computer’s usage every 12 or 24 hours. If any component in your wireless chain was made by Cisco, it’s free. If not, it’s a nominal charge.

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