We did contact Linksys . . . since out router was at least eight year old, they would not help unless we spent $32.95 for tech support. We would rather spend twice that much to get a new router.
I was using Linksys successfully until I did a firmware update about a month ago. The firmware killed the router. I'm fortunate that even though the router was 2 years old they issued a RMA. I'm using a crappy little Trendnet router now that has a wireless range of about 10 feet.
I should have left good-enough alone and not install the new firmware.
OH sorry, I thought you bought a new one that would still be in warranty.