Re: Network connection works once, then never again
- From: Fred S <Fred@xxxxxxxxxxxxx>
- Date: Wed, 11 Jan 2006 22:41:36 -0500
Have you tried disabling the software firewall and then pulling the plug on the router for 30 seconds? Then plug the router back in and see if both connections work.
Fred
lorenjerickson wrote:
Well, there is no IP address because in both cases (wired and wireless) the network card never receives an IP address from the router/DHCP server. In the wired case, you can watch the status icon in the system tray and it will indicate that the card is requesting an IP address, but then the icon changes to the red 'x' and a balloon message is displayed which states "a network cable is unplugged". In the wireless case, the card never locates the wireless network, so there could be no attempt to obtain an IP address.
I have two other computers, one wireless and one wired, and neither has any problem obtaining an IP address from the router, so I'm pretty sure it's not the router. I've tried the same network cable that I used for the other wired computer on the new computer so I don't think is a physical connection problem either.
It's a little troubling that the wireless card can't even see the network (I'm broadcasting the SSID) now. It had no trouble whatsoever finding it on the initial install and configuration.
The wireless card is Lynksys, the router is Lynksys (WRT54G) flashed with the latest updates. The wired card is some well-supported (on the HCL) brand, I don't recall the name. This just doesn't make any sense.
"Robert L [MS-MVP]" wrote:
It could be the connection issue or hardware settings issue. What's the IP address?
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com "lorenjerickson" <lorenjerickson@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:97CF5089-3C68-4070-A721-4A06B505CD79@xxxxxxxxxxxxxxxx
I just built a new 64-bit system based on an ASUS A8V motherboard and an AMD Athlon 3500+. I've got WinXP x64 installed on a SATA drive (no small feat, apparently), and everything works great, except…. I'm seeing a very weird problem with my network card. The motherboard has onboard LAN, so I tried that first. The drivers installed just fine and I got onto the Internet…once. I connected to Windows Update and downloaded all the latest updates. Then I rebooted, and the network connection never worked again. WinXP reports that the device is working normally, but the card fails to get an IP address from the router/dhcp server. (This is a home network.) I have another computer that is also hard-wired to the router and it consistently obtains a network connection, so I'm pretty sure it's not the router.
I thought it might be a problem with the motherboard, so I bought a wireless card (Lynksys) and installed it. WinXP didn't recognize the card at first, but I'd read online that if that fails you should try drivers from Ralink whose chipset is used in some Linksys cards. I downloaded those drivers and used them to install the device. WinXP complained that it couldn't verify that the drivers would work with this device, but I tried it anyway. The device was recognized, and it worked great…once. I chose to use my newly re-established network connection to download more updates from windows update, and after the reboot the network connection was lost (again). In this case the wireless card would not even locate the wireless router, which is sitting right next to the new computer. WinXP reports that the wireless card is working correctly.
It's very strange that I would essentially the same problem with two different network cards. I'm trying to pare this problem down to common denominators, but it's pretty tough. Motherboard? OS? Router? My next step is to connect the onboard LAN directly to the cable modem to try to eliminate the router. Do you have any insight on this problem?
.
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- From: Robert L [MS-MVP]
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