Oh as well, usually a powercycle of the router (unplug for 30 sec - the power) and plug back in will fix it.
As well if that doesn't you can do a hard reset on the router, look for a reset pinhole, stick in for about 2-3 seconds, no longer else you may fry the router..
Linksys are good routers, they are made by Cisco, it may just be old, stuff breaks :)
Do you have a brother or anything that likes to fuck with you? Sometimes I log into the router and put him on a banlist for certain sites he goes to hehe
Unicorns ARE real - They are just fat, grey and called Rhinos








