I have a router upstairs in my house and it connects perfectly when i use lan cables to connect to the internet, but when i use my wireless on my laptop after an hour or two it disconnects and i have to unplug the router and the modem to reconnect. It only happens when i use my wireless on my MacBook, and my roomate has the same computer and it does the same exact thing. Any advice?

this happens to me turns out the DHCP lease time was set to too short a length

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