Unusual network problem, local IP techs can't solve

[Thor25]

Hi all first post, hopefully someone here can help with this perplexing problem, I'm in Iceland and the local ISP's tech couldn't solve so I'm hoping someone here can.

The simplified version.

I have adsl through my ISP which provides both TV and internet. I am connected through their router, directly cat 5e through one switch which splits off to main floor cable box and then into the computer room.

Here's the interesting part, when connecting directly to my laptop I get a internet connection no problems. Take the same wire over to the desktop and nothing works, only rarely is it even able to do a ping or tracert.

At this point I figured a possible hardware issue, onboard ethernet. So I used a wireless NIC and then a normal expansion NIC with the same results. Figured at this point, likely motherboard problem. So at this point when I was about to buy a whole new mobo, I wen't to my brothers house with my desktop, hooked up the computer and bam the internet worked instantly with no problems.

So this is a very unusual one, I'm not a total noobie and have tried lots of fixes from these and other forums. The specific error message I get when using win7 diagnostic on the adapter is:

Ip config error: doesn't have a valid ip configuration

So the ultimate question is if the hardware is ok, why does my desktop refuse to work with the same connection that works perfectly on my laptop.

Thanks for any help, I'm at a loss and anxious to finally figure out what is going on here.

 

[chev65]

If you can post your ipconfig /all of the problem machine while it's connected that might help to figure out this problem.

 

[Thor25]

C:\Windows\system32>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Thor-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NVIDIA nForce 10/100/1000 Mbps Ethernet #
2
Physical Address. . . . . . . . . : 00-24-8C-46-E9-80
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IPv4 Address. . : 169.254.143.165(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{4CF11DBD-26E1-4D09-A56C-49F76B895AD3}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

 

[Thor25]

Btw removed the check for Ipv6 as part of the troubleshooting attempts with the tech from the ISP, in case you wanted me to turn that on for the ipconfig.

 

[Dwarf]

Can you repeat the command on your laptop so that we can compare the results.

 

[Thor25]

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Thor-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : lan

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : lan
Description . . . . . . . . . . . : Marvell Yukon 88E8071 PCI-E Gigabit Ether
net Controller
Physical Address. . . . . . . . . : 00-1D-72-F1-28-6A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::bd83:720f:f825:ca22%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.66(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Saturday, October 02, 2010 4:31:45 PM
Lease Expires . . . . . . . . . . : Wednesday, October 06, 2010 7:13:37 PM
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 268442994
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-13-D0-1B-ED-00-1D-72-F1-28-6A

DNS Servers . . . . . . . . . . . : 192.168.1.254
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : lan
Description . . . . . . . . . . . : Intel(R) WiFi Link 5100 AGN
Physical Address. . . . . . . . . : 00-21-6B-0C-75-AE
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.lan:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : lan
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fd:382d:1f1b:6262:4b88(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::382d:1f1b:6262:4b88%13(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Windows\system32>

 

[chev65]

C:\Windows\system32>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Thor-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NVIDIA nForce 10/100/1000 Mbps Ethernet #
2
Physical Address. . . . . . . . . : 00-24-8C-46-E9-80
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IPv4 Address. . : 169.254.143.165(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{4CF11DBD-26E1-4D09-A56C-49F76B895AD3}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

As it stands you aren't getting anything from your router here. Have you tried using the other eithernet connection on the back of the board? These Nvidia boards usually have two.

And yes you should re-enable IPv6.

The second picture shows a working connection although your default gateway isn't normal, it should be something like 192.168.X.X depending on the type of router? Although in iceland using one of those combo router-modems this might be normal, not sure.



You might try entering the default gateway 192.168.1.254 manually into your IPv4 properties window.

 

[Thor25]

I have currently disabled, the new NIC I bought to see if it was my onboard Lan. It was able to get a bit further by showing I was connected to the internet but not loading any pages. I'll try to recreate that again to get some more useful ipconfig all for you.

 

[chev65]

It might help to reset winsock and the TCP/IP stack.
Try running these commands at your command prompt run as admin.

netsh winsock reset catalog (reset winsock entries)
​

netsh int ip reset reset.log hit (reset TCP/IP stack)

Do you have anything from apple or adobe installed like iTunes or adobe photo suite?

​

 

[Thor25]

Currently on my trendnet nic, attempted the fix you suggested (which I think the tech tried) without any success. It just shows unidentified network and the red X to the internet.

 

[Thor25]

No luck with the netsh commands, had tried that before but no luck, repeated it now with no luck as well.

I'm going to disable my expansion NIC and stay with the onboard during this troubleshoot for consistancy as it doesn't seem to be a hardware issue.

 

[Thor25]

Found some settings and silly stuff I did (ping'ed myself) when I did once get the onboard lan to detect the network and seemingly look as if I was in working order. Maybe some of this can shed some light on things, or complicate things.

Tracing route to mbl.is [92.43.192.110]
over a maximum of 30 hops:

1 10 ms * * dsldevice.lan [192.168.1.254]
2 15 ms * * 157.157.255.114
3 * * * Request timed out.
4 * 15 ms * csn-198.simnet.is [157.157.115.198]
5 * 15 ms * neumann.mbl.is [92.43.192.110]
6 * * * Request timed out.
7 15 ms 15 ms * neumann.mbl.is [92.43.192.110]
8 15 ms 15 ms * neumann.mbl.is [92.43.192.110]
9 * * * Request timed out.
10 * * 15 ms neumann.mbl.is [92.43.192.110]

Trace complete.


Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : lan
Link-local IPv6 Address . . . . . : fe80::2496:8041:4567:68da%17
IPv4 Address. . . . . . . . . . . : 192.168.1.71
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254

Tunnel adapter isatap.lan:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : lan

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fd:1c2c:2e1:3f57:feb8
Link-local IPv6 Address . . . . . : fe80::1c2c:2e1:3f57:feb8%11
Default Gateway . . . . . . . . . : ::

C:\Users\Thor>ping 192.168.1.71

Pinging 192.168.1.71 with 32 bytes of data:
Reply from 192.168.1.71: bytes=32 time<1ms TTL=128
Reply from 192.168.1.71: bytes=32 time<1ms TTL=128
Reply from 192.168.1.71: bytes=32 time<1ms TTL=128
Reply from 192.168.1.71: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.71:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\Thor>ping 192.168.0.1

Pinging 192.168.0.1 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.0.1:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

 

[chev65]

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : lan
Link-local IPv6 Address . . . . . : fe80::2496:8041:4567:68da%17
IPv4 Address. . . . . . . . . . . : 192.168.1.71
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254

This is an improvment as it shows you being connected to the router. Do you have any type of A/V software installed or a third party firewall installed on this machine?

 

[Dwarf]

Try manually setting your configuration. With reference to the image that chev65 posted and the ipconfig information from you, the settings required are shown below.

 

[chev65]

It looks like 192.168.71 is the current IP although at this point it's a static IP and shouldn't matter much.

The question is why isn't this machine picking up the DHCP assignment from the router.

 

[Thor25]

No luck on the static settings. The link I had which did connect to the router happened last week, have not been able to replicate that since.

This computer software wise is bare bones, fresh win7 ultimate and other than win firewall there is no other software, I even removed anti virus in case it was meddling somehow.

But yeah like you said why isn't this router able to communicate with the desktop, it works perfectly at another home and works perfectly here with my laptop.

 

[chev65]

Ok at least we have narrowed it down a bit. The only good ipconfig was from last week so the last ipconfig /all you posted was from then.

With these Nvidia chipsets they can go wacky at times and often they require a cmos clear in order to come back to life. I have the same chipset and have fixed problems like this a few times by just clearing the cmos. I'll assume that you are using the latest Nvidia chipset drivers.
Have you tried clearing the cmos yet?

 

[Thor25]

Ahh we might have something there, the cmos battery was recently replaced. I had also issues with adding new ram which a new battery in the cmos fixed.

Let me take the battery out and jumper it, is it good enough to jumper clear for a minute with the battery in and start up the comp again. Just making sure I'm doing it right.

I'll reconfirm my chipset drivers, quite confident they are the correct ones but at this point triple checking is needed.

 

[chev65]

Ok we might be getting somewhere now. If you remove the battery be sure and reset the bios time/date and make sure that other settings are correct.

You should only need to clear the cmos at this point but be sure and note any special settings or required settings like memory and other settings so you can set them back again.

Does this board have two eithernet inputs on the back of the board?

 

[Thor25]

cmos clear didn't work, didn't remove the battery however.

But I know the cmos did clear, had to fix some bios settings.

Checking out the drivers on the chipset now.