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Unidentified Network.

post #1 of 51
Thread Starter 
Hello all, I don't know if this is the right section to post this or not. If so, feel free to move this thread into the right section.

For me this has been a really complicated problem and so far I still haven't managed to fix it. Please take your time to read the entire post, I did my best to make it as detailed as possible.

Here's the situation:

About 3 weeks ago, I finally ordered the new rig (listed below my sig). I installed all the required drivers and all was well. Untill a few days back. I left for 5 days at a festival, when I came back I noticed my connection was gone. I could not connect to the internet anymore.

During these 5 days no one has touched my rig, and everything was working fine before. When I googled for a solution I had MANY results but not one that managed to fix the issue for me.

I decided to ask help here. It's a new rig and it's unlikely my hardware is damaged (more on that later) but for some reason I just can't seem to get a connection established.

IMPORTANT
What makes me clueless is that my current pc where i'm typing this at is working and connected to the same switch & modem. I already ruled out both parts as they are working fine without any problem. Also replaced my cable with a new one.

To make it easier i'll add a list of things I tried and didn't work.

- First I checked if my cable was broken and replaced it with another i had laying arround. Problem still excisted
- I then resetted the modem aswell as the switch, problem still arround.
- Then I just decided to format my rig and see what happens. I was expecting this would fix it, but to no avail.

See, here's where it gets annoying. You could pretty much start assuming my network adaptor is just broken, but then I called my ISP and see what they could do for me.

First they asked me to check ipconfig. My Ipv4 showed the famous and well known 169.254.x.x ip. He then started to explain to me what that meant, first time i had a guy on the phone that actually knew what he was doing.

Finally he asked me to release and renew the ipconfig. Both commands showed an error. He then told me something wich I think is important to know: My pc kept requesting an IP from their servers, followed back with a respone from that server. But then he said my PC wouldn't assign them or something.

I guess that means my network adapter isen't really broken?

- Ive also tried disabling the ipv6 protocol, but that didn't help either.
- Tried disabling/enabling the network adapter, nothing.
- Tried resetting the TCP/IP or something, again nothing.
- Disable bonjour service, nothing because it dousn't even show the service on my rig

I'm really clueless as to what might be wrong. I want to avoid shipping back my mobo unless there's no other option.

The following error is shown when I use the troubleshooter:
"local area network doesnt have a valid ip configuration"

The following error is shown when using the ipconfig/renew command:
"An error occured while renewing interface Local Area Network: Unable to contact your DHCP server. Request has timed out.

Later today I will try to add a different OS (xp or vista) and see if the error still excists.
But in the meantime some of you could post possible sollutions that I might have missed, or guide me through ways of fixing this mess.

Much appreciated and thanks in advance!
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post #2 of 51
if it's attempting to reach out for an IP through a server it would have to go through your DNS, is that set correctly?

Also you wouldn't have to RMA your MoBo, it might not seem like it but it could very well be your NIC, it might just have a problem sending and receiving packets :/

Other then the two above mentioned thing's I wouldn't know what to tell you... Wish I could help further
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post #3 of 51
Thread Starter 
I pinged to 127.0.0.1 and nothing was wrong, this should mean my NIC is working properly. (It also shows packets being sended and recieved)

How do I check if my DNS is set up properly?
Thanks in advance!

I still didn't have time to install xp, I will give it a shot tonight although i'm pretty skeptical about the results.
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post #4 of 51
I think I've encountered something like this, like OP has posted "my computer was requesting an IP"
this was where my modem was also requesting an IP from my ISP, but nothing was able to get through until I had contacted them to find out why their boxes wasn't able to send me my IP. I think your ISP missed the procedure to reset their connection to you (it's not as vivid because this occurred months ago) but the guy I talked to also knew what he was doing (for once lol). So I suggest calling again and tell them, "my modem isn't receiving an IP"

But this is half irrelevant because you have a connection to the internet.. when I wasn't able to for a complete 24 hours.

Hmm, certainly a head boggler
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post #5 of 51
Ipconfig /all from cmd prompt
Copy and paste it here
Just xxx out your Mac addy. We dont need to see that
post #6 of 51
Thread Starter 
C:\\Users\\alwin>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : alwin-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 . . . . . . . . . . . : Intel(R) 82579V Gigabit Network Connection
Physical Address. . . . . . . . . : xx-xx-xx-xx-xx-xx
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::5f2:ea05:aa20:6850%15(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.104.80(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 234122500
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-B6-8D-04-F4-6D-04-45-79-A0

DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : xx-xx-xx-xx-xx-xx
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{6EAD92AF-78D8-4C94-93DE-3F4C5F0971A7}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : xx-xx-xx-xx-xx-xx
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{9CB321DF-5745-4B8A-86A2-BF0F0914C41A}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : xx-xx-xx-xx-xx-xx
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\\Users\\alwin>

Thanks in advance.
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post #7 of 51
You stated this PC is connected to the same "switch" and modem as your non working SIG rig. Please explain that statement. Because if you actually have two PCs connected to a "switch" that is more than likely your problem.

If you have both computers connected to a router, try configuring a static IP in the network you have configured on the router.

If this is really a switch, most ISPs only give out one IP address to customers. I would think your ISPs tech support would have ruled this out.
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post #8 of 51
I was just going to ask that same question. Are you connected to a switch? if so does your modem have DHCP in it and its own IP address. I run into a problem sometimes like that. I use a switch for all 6 computers in my house and have set them all with there own IP, I have a ATT DSL modem with the IP 192.168.0.1 so thats my default gateway and DNS. check your modem and set acordingly. Dont know how it is over there but ATT here has added dhcp to there modems.
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post #9 of 51
Thread Starter 
I think it is a switch. (d-link des-1005d model)

And yes, both pc's are connected to it.
Also, this set up worked without problems before. (Our isp made some recent changes, so maybe this might be a reason?)

And I have no idea if my modem has DHCP or an IP, how do I check these kind of things?

Thanks in advance.
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post #10 of 51
If your IP address is in the range 169.254.xxx.xxx, then this indicates that the DHCP client in your computer failed to contact a DHCP server on the network, and APIPA is enabled, and it has automatically assigned you a private IP address in the 169.254.xxx.xxx range. With such an address, you will not be able to work with the public Internet.

It can be due to the following reasons
A misconfigured firewall has prevented a DHCP lease being acquired
You have recently swapped the computer or network interface card
You do not have a working ethernet/USB connection between your PC.
Check cable and plugs, check ethernet LINK lights are lit at both ends
Your PC has multiple network interfaces and it is sending DHCP requests on an interface
Edited by Spooony - 7/24/11 at 12:10pm
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