Unable to connect via LAN with wireless rou...

I have a laptop and a desktop pc which are both connected via LAN connections of wireless router to the internet. The other day I was working online when suddenly there was a power outage to my home and just as suddenly the power was restored (literally a fraction of a second). I was unable to continue my use of the internet when the power returned and I noticed that my router's LAN lights were all out. Normally, 2 of the 4 LAN lights are on. I disconnected the power to the router, waited 30 seconds and reconnected the power. The LAN lights remained off. I did this several times with no success. The internet light on the router was on. I called my ISP, Surewest, and the rep told me that from his end I was connected to the internet. So, it would appear that my router is connected to the internet but, for some reason, is not connecting my laptop and desktop via its LAN connections to the initernet. Can you offer any assistance? Thanks.