Question about Linksys EtherFast Cable/DSL Router

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Has router failed?

Yesterday both home computers on linksys etherfast cable/dsl 4x (wired) could no longer get online. If I bypass the router, then my computers can get online. The indicator lights on router indicate it "sees" the computers and the computers "see" the router (if I shut down the router, my computer "announces" that it lost the connection and when I power the router back up the message goes away). I've also reset the router for no change. I have Comcast cable. Everything I've checked from the IP address to speed seems okay. Could the router be caput and needs replacing?

Blake Gallagher (

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The first question that needs to be answered is if your computer still gets an IP address from the router.
First reset the router.
Press the reset for 30 seconds then let go and then pull out the power. plug the power back in.
On the computer wired to the router.
1. Click start then run then type in CMD
2. Type in IPCONFIG
3. Check if you still get an IP.

Posted on Jul 27, 2008

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You need to find out if you have connectivity to the router from each PC and if each PC can still contact the other PC. This will verify that at least your physical layer connections, (the cables, PC's and router) are all connected and functioning at at least IP and DHCP level. Do this from all computers, you said you have 2? Reset router, (unplug it for 15 seconds then plug it back in), first, then reboot/reset/restart both PC's or you can just type at a command prompt on each one and type: IPCONFIG /RENEW ALL then IF you get an IP you should see if you can ping the default gateway for each computer and each computer. If you are not computer friendly just do the restart/reset/reboot thing. Once you have finished those steps do an IPCONFIG command and this will tell you your Default Gateway, (your router's IP address, and your PC that you ran the command from IP address.

Then use the PING ***.***.*** (the *** need to be replaced with the ip for example or whatever ) command to ping your router(default gateway), and your other computer once you know it's IP as well. IF you get back 4 lines saying <10 msec response then all your equipment is wired find, and your router is also at least functioning at DHCP/IP level of the OSI troubleshooting model. Please come back and let us know if that's working or not, then we can move to the next steps.

If you have any questions feel free to come back here and comment or contact me. I will follow this question/problem so I will check in often.


Jon Caldwell

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Posted on Aug 14, 2012


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