|most home routers have the ability to schedule access.|
I used to disallow my children to access the internet 10pm to 3pm so they would go to sleep and not play games all night. Just enough time to do homework. They could still print and use the lan just couldn't use the internet.
The basics are;
create the hourly schedule
determine the mac address of what you want to block
do a mac filter/ip address reservation for that device [laptop/pc/whatever]
put that ip or mac address in the hourly schedule [which depends on router]
password protect the router so they can not change it and you are done.
Worked for me all the way thru highschool for my kids.
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