Power surge & the host computer internet not working but linked computer is?

We had a power surge today and we have two computers networked - they are linked by Linksys wireless G router. The linked computer's internet access is fine, but the host computer's "Local Area Connection 2" status is "limited or no connectivity". The host gets its internet access from a Siemen's Speedstream 4100 modem - all of its lights ar on (ie. Power, Ethernet, DSL, Internet) are on except for "Activity". I'm confused how the internet is not working on the host but is (thankfully) working on the linked computer. What should I do to fix this? Also, I have an extra Speedstream modem if that would help fix the problem.





I tried to access files on the host computer from the linked computer and it says it's not accessbile.





Help please! Thanks!!!!

Power surge %26amp; the host computer internet not working but linked computer is?
First:





Connect the router (The WAN jack on the back) to the modem. Then connect each computer to one of the LAN jacks on the router. There's no reason to have one computer routing for another computer when you have a real router, and reasons to not do so.





Second:





Go to Start/Control Panel/Network Connections - then to the connection you're using, Local Area Connection if you're connecting with wires. Click on Internet Protocol, then on Properties. Make sure "Obtain an IP address automatically" is selected. Click OK until you're out of everything, then reboot.





If this doesn't give you back your connection (and an IP and a Gateway address), the ethernet card in that computer is probably bad and will have to be replaced.
Reply:Sounds like the ethernet card on your "HOST" computer is not working because of the power surge.





Im confused. Why are you calling it a host computer if you are using a router? There is no host computer when you use a router. The router shares the internet connection with the two computers. You can disconnect either computer and the other will work just fine. So many people think you need to have a wired computer on the router for it to work. A router is a stand alone device, it does not required a wired computer to be connected to it.