Ethernet stopped working!

zudecke

Hi guys..

So I have run into a strange problem over the last 2 days..

I cannot access the internet using ethernet on my desktop PC. I tried the same ethernet from the same port of the router into my laptop and it worked fine, so guessing it's an issue (HW or SW) with the ethernet settings or HW on the PC itself?

How can I diagnose?

I have attached a photo/screenshot of the ipconfig/all command..



Any help much appreciated!

D

GunJack

looks like the port is being recognised...what does Device Manager show for it??

zudecke

Hi..

Foreseeing the questings arising, here are some ping results:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Nick>ping 192.168.1.67

Pinging 192.168.1.67 with 32 bytes of data:
Reply from 192.168.1.67: bytes=32 time<1ms TTL=128
Reply from 192.168.1.67: bytes=32 time<1ms TTL=128
Reply from 192.168.1.67: bytes=32 time<1ms TTL=128
Reply from 192.168.1.67: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.67:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\Nick>ping 192.168.1.254

Pinging 192.168.1.254 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.1.254:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Users\Nick>ping 8.8.8.8

Pinging 8.8.8.8 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Users\Nick>ping yahoo.com
Ping request could not find host yahoo.com. Please check the name and try again.


C:\Users\Nick>ping google.com
Ping request could not find host google.com. Please check the name and try again
.

C:\Users\Nick>

I am using a Dell Studio Hybrid.

Below is a screenshot of the device manager dialog for my ethernet controller showing all seemingly to be ok..


Also, just to confirm, the led light of my ethernet port itself is orange as opposed to the usual yellowy/green..

Again, any help appreciated guys!

Thanks,

Z

asbokid

zudecke wrote: »

Hi..

Foreseeing the questings arising, here are some ping results:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Nick>ping 192.158.1.67

Pinging 192.158.1.67 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.158.1.67:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

Try again with 192.168.1.67

C:\Users\Nick>ping 192.168.1.254

Pinging 192.168.1.254 with 32 bytes of data:
Request timed out.
Reply from 192.168.1.67: Destination host unreachable.
Request timed out.
Request timed out.

Ping statistics for 192.168.1.254:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),

You got one ping packet response from the router, so you've got some connectivity.

That points to a cable fault, a failing NIC or a failing port on the router/switch. Long shot is it could be a clashing IP address.. so ethernet frames from your PC are colliding with those from another device. Are there any other ethernet devices connected to the switch? If so, temporarily disconnect them.

Best guess..try another ethernet cable, or another ethernet port on the same router.

Also, just to confirm, the led light of my ethernet port itself is orange as opposed to the usual yellowy/green..

You've got a RTL gigabit ethernet card, so i *think* the orange simply means that it's connected to the router/switch at 100Mbps (instead of 1Gbps when it would be green)..

If so, the orange LED doesn't indicate a fault as such. It is illuminated orange because the router/switch is not a gigabit ethernet device..

debitcardmayhem

asbokid wrote: »

Try again with 192.168.1.67

You got one ping packet response from the router, so you've got some connectivity.

That and the fact that the card has picked up the DHCP responses too.....

zudecke

Hi guys,

Thanks for pointing out the mistake in the ping.. It was a typo. Below is the actual:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Nick>ping 192.168.1.67

Pinging 192.168.1.67 with 32 bytes of data:
Reply from 192.168.1.67: bytes=32 time<1ms TTL=128
Reply from 192.168.1.67: bytes=32 time<1ms TTL=128
Reply from 192.168.1.67: bytes=32 time<1ms TTL=128
Reply from 192.168.1.67: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.67:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\Nick>ping 192.168.1.254

Pinging 192.168.1.254 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.1.254:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Users\Nick>ping 8.8.8.8

Pinging 8.8.8.8 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Users\Nick>ping yahoo.com
Ping request could not find host yahoo.com. Please check the name and try again.


C:\Users\Nick>ping google.com
Ping request could not find host google.com. Please check the name and try again
.

C:\Users\Nick>

I'm not running any anti-virus software, nor any firewalls. It's a vanilla installation of Windows 7 that I use for document processing and very light web browsing only. I highly doubt it's a virus..

Thanks,

Z

zudecke

asbokid wrote: »

Try again with 192.168.1.67

You got one ping packet response from the router, so you've got some connectivity.

That points to a cable fault, a failing NIC or a failing port on the router/switch. Long shot is it could be a clashing IP address.. so ethernet frames from your PC are colliding with those from another device. Are there any other ethernet devices connected to the switch? If so, temporarily disconnect them.

Best guess..try another ethernet cable, or another ethernet port on the same router.

I tried the same cable from the same router port to my laptop and it worked perfectly...

spud17

zudecke wrote: »

I tried the same cable from the same router port to my laptop and it worked perfectly...

What about a different cable on the troublesome pc?
Or even the original cable, but reversed.

zudecke

I could try, but I doubt it would work.. If the same cable from the same port has been proven to work.. It sort of rules the router and cable out, right?

Toxteth_OGrady

Have you tried a Network Diagnosis and Repair? Could be the ARP cache needs flushing.

Go to Control Panel --> Network and Sharing Center --> Network Connections, right click on the Local Area Network Connection and select 'Diagnose.'

debitcardmayhem

Could you issue a netstat -rn , and see what you have