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Ethernet cable not recognized


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7 replies to this topic

#1 zakdan

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Posted 08 December 2008 - 01:46 AM

I working on a HP Pavilion zv6000 laptop with: AMD Athlon 64, 2GHz; 512MB PC2700; Bios ver.: F.1A; 128MB dedicated Video memory; Running XP Home Edition SP3. I have a DSL modem with a Linksys WRT54-g wireless router.

When I first got this computer in, It wouldn't even boot into safe mode. I checked the BIOS to see if everything was there. When I ran the Bios Tools Short test (estimated test time 2 minutes) it never got above 10% complete after a half hour. I tried the Long test and the same thing... it never got above the 10% mark. Using a copy of the XP repair console, I ran a scan on the HD and found several errors. I had to replace the master boot file. Then I ran the restore utility to recover back to when I knew it was working properly. When I got it to boot into Windows, I ran scans for malware but found nothing but some non critical adware, which I cleaned up. I then cleaned up the start menu and everything worked great.

Except... the ethernet cable shows up as disconnected. No indicator lights come on when I plug the cable into the jack. It is a good cable and does work on my other computers.

I went back to the BIOS setup utility > Advanced Tab, only the Embedded Wireless LAN device is shown and it is enabled. In the Boot Order Tab, it shows the order as: CD-rom> Floppy> +Hard Drive> Network Adapter. I tried uninstalling/reinstalling the NIC and the driver, I reset the DSL and router. I checked the following:

Ran cmd>ipconfig/all and:
Windows IP Configuration
Host Name......................: Tracey-6F73bffo
Primary Dns Suffix.........:
Node Type.......................: Unknown
IP Routing Enabled.........: No
WINS Proxy Enabled.......:No
DNS Suffix Search List....: launchmodem.com
Ethernet Adapter Location 1:
Media State......................................: Media Disconnected
Description......................................: Realtek RLT8139/810x Family Fast Ethernet NIC
Physical Address.............................: 00-0F-B0-78-45-AB
Ethernet adapter Wireless Network Connection:
Connection-specific DNS Suffix..... : launchmodem.com
Description...................................... : Broadcom 802.11b/g WLAN
Physical Address............................. : 00-14-A5-17-74-FC
Dhcp Enabled................................. : Yes
Autoconfiguration Enabled............ : Yes
IP Address..................................... : 192.168.2.101
Subnet Mask.................................. : 255.255.255.0
Default Gateway............................ : 192.168.2.1
DHCP Server................................. : 192.168.2.1
DNS Server................................... : 192.168.1.254
Lease Obtained.............................. : Thursday, December 04, 2008 12:27:20 AM
Lease Expires................................. : Friday, December 05, 2008 12:27:20 AM


In the Device Manager>Network adapters>Realtek RTL8139/810x Family Fast Ethernet NIC>Properties:

General Tab> Device type: Network Adapters
Mfg............ : Realtek
Location...... : PCI Slot 4 (PCI bus 3, device 6, function 0)
Status.......... : This device is working properly.
Device usage : Use this device (enable)
Advanced Tab:
Property: Value:
Link Down Power Saving: Disable
Link Speed/Duplex Mode: Auto Negotiate
Network Address: Not Present
Optimal Performance: Disable
Receive Buffer Size: 64K bytes
Wake-On-Lan After Shutdown: Enable
WakeUp on ARP/PING: Enable
WakeUp on Link Change: Disable
WakeUp using APM Mode: Disable
Driver Tab:
Driver Provider: Realtek Semiconductor Corp.
Driver Date: 2/25/2008
Driver Version: 5.687.225.2008

I also tried to wiggle plug in the jack to see if the indicator lights might blink on which might indicate a cold solder joint or some loose connection and nothing changed.

Can any of you help me with this? It was working before the OS crashed.

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#2 rigacci

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Posted 08 December 2008 - 12:49 PM

I have a Foxconn motherboard that lost its on-board NIC during a lightning storm. I got a NIC card for $15 that solved the problem. :thumbsup:

The On-board NIC still comes up as good in Device Manager and Network Places but it is not because I cannot connect with it. :trumpet:

New NIC card, problem gone. Try that, if you can. :flowers:

DR

#3 zakdan

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Posted 09 December 2008 - 02:23 AM

How do I check the on-board NIC?

#4 rigacci

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Posted 09 December 2008 - 09:41 AM

Checking the on-board NIC can be deceiving. Mine gave every indication that it was working except for allowing me to open a web page.

The easiest way to check it is to just get a PCI NIC and install that. They can be had for $5 at a computer show or $10-15 at Wal-mart. It might be best to get a new one so that you can be sure it is really good. If that allows you to connect, your on-board is bad.

If, after that, you still cannot connect, the problem is deeper. Let us know.

You can also purchase a NIC with a USB interface. You plug it into your USB input and then plug in your network cable. They also have them in wireless. My son has a D-Link that works well for him.

DR

#5 zakdan

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Posted 09 December 2008 - 11:36 PM

Thanks DR,

I'll find a NIC to try. I can still connect with the on-board wireless. I'm not as use to working on laptops as I am with desktops, but now is as good a time as any.

It'll take me some time to get the NIC, but I'll post back as soon as I can.

Thanks for your help.

GC

#6 Sneakycyber

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Posted 10 December 2008 - 05:37 AM

Since its a laptop it will need to be a PCMCIA or a USB adapter. :thumbsup:

Chad Mockensturm 

Systems and Network Engineer

Certified CompTia Network +, A +


#7 rigacci

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Posted 10 December 2008 - 07:30 AM

Thank you for catching that Sneakycyber.

DR

#8 garmanma

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Posted 10 December 2008 - 09:24 AM

This must be catching. I just hosed mine on my XP box
Mark
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