Keep having to reboot router

I'm having trouble with my Router. It is a Linksys Wireless Router.

I have one PC hardwired from the router and two others that are wirlessly connected. On multiple occasions in a given day, I get an error message when I open IE that "webpage cannot be displayed". The only thing that seems to work is rebooting the router and the connection will be made.

Is there someway I can fix this? Is there a setting for the Linksys Routers that lets them go to sleep that I can disable?

Thanks.

 

Probably the DNS is outdated. Go start, run, enter "cmd", enter these commands:

ipconfig /flushdns

Wait for 1 min. If that doesn't work, try this line:

netsh int ip reset c:\resetlog.txt