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Windows 7: LAN Unidentified Network Problem Resurrected


13 Jan 2012   #1

Windows 7 Home 64bit
 
 
LAN Unidentified Network Problem Resurrected

Hi, I've been struggling with my 1 year old Samsung laptop for the last week or so. I have a modicum of tech savvy but please forgive me if I don't always use the right terms. I've been using my laptop steadily with pretty great connection speed for the last 6 month plugged directly into my Time Warner Cable provided modem. A week ago, my internet access suddenly disappeared and left me with the apparently pretty common "Unidentified Network" message.

I could not release nor renew my ip address, which was stuck at a 169.x.x.x style address.
I ran all of the commonly suggested command line actions (TCP/IP, winsock, etc.) which told me that my computer could not connect to the DHCP server.
I disabled, enabled, uninstalled, reinstalled, and updated everything that could be.
I got a new modem. I double checked the cords. (my desktop computer does work when plugged in)
I disabled the Windows firewall.
I disabled the wireless card to make sure it wasn't interfering.
I double checked that I had uninstalled the preinstalled Norton and McAfee programs.
I reformatted my computer (auuuugghhh)
And then I did all of that again.

All of which was utterly to no avail.

Then, suddenly, 20 minutes ago when I plugged the ethernet cable in to try pinging the ethernet card because I realised I'd never 100% established that it was still in working condition, when suddenly! I have internet. Kind of. It's extreeeeeeeeeeeeeeeeeeeeemley slooooooooooooooooooow.

Is something that I can even ask advice for? I guess there's no way of telling why my internet access was magically resurrected after a week of frustration and despair. Is there any way to help try to restore my computer to running speed? The connection speed is just dire and really limits my browsing & media capabilities (namely video chat). I live really far away from my twin sister and it's shockingly hard to deal with losing my google video chat.

I have Avast installed and up to date, so I don't think a virus could have survived two reformats and a quick check onto cnn and youtube to test connectivity.

I've copy pasted my current ipconfig results below--

Code:
 
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
 
C:\Users\Joyce>ipconfig /all
 
Windows IP Configuration
 
Host Name . . . . . . . . . . . . : Joyce-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : nycap.rr.com
 
Wireless LAN adapter Wireless Network Connection:
 
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros AR9285 Wireless Network Adapter
Physical Address. . . . . . . . . : 18-F4-6A-37-2F-30
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
 
Ethernet adapter Local Area Connection:
 
Connection-specific DNS Suffix . : nycap.rr.com
Description . . . . . . . . . . . : Marvell Yukon 88E8059 Family PCI-E Gigabi
t Ethernet Controller
Physical Address. . . . . . . . . : 00-24-54-D8-91-38
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::6dc8:fc61:f25b:9d81%11(Preferred)
IPv4 Address. . . . . . . . . . . : 74.76.217.101(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.254.0
Lease Obtained. . . . . . . . . . : Friday, January 13, 2012 6:05:20 PM
Lease Expires . . . . . . . . . . : Saturday, January 14, 2012 6:40:23 AM
Default Gateway . . . . . . . . . : 74.76.216.1
DHCP Server . . . . . . . . . . . : 10.235.192.1
DHCPv6 IAID . . . . . . . . . . . : 234890324
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-23-3D-F3-00-24-54-2C-6E-0B
 
DNS Servers . . . . . . . . . . . : 209.18.47.61
209.18.47.62
NetBIOS over Tcpip. . . . . . . . : Enabled
 
Tunnel adapter 6TO4 Adapter:
 
Connection-specific DNS Suffix . : nycap.rr.com
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:4a4c:d965::4a4c:d965(Preferred)
Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
DNS Servers . . . . . . . . . . . : 209.18.47.61
209.18.47.62
NetBIOS over Tcpip. . . . . . . . : Disabled
 
Tunnel adapter Teredo Tunneling Pseudo-Interface:
 
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e76:20d6:29e:b5b3:269a(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::20d6:29e:b5b3:269a%20(Preferred)
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled
 
Tunnel adapter isatap.nycap.rr.com:
 
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : nycap.rr.com
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
 
Tunnel adapter isatap.{FB807E34-D5F6-4AFB-AAF5-0AB1EBA7105A}:
 
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

I'm also now afraid to turn off my computer in case my connection disappears again.


My System SpecsSystem Spec
.

13 Jan 2012   #2

Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
 
 

Joyce,

Welcome to SF.

What do you mean "Internet - kind of"?

Can you ping alpha and numeric?

Do you have the latest network drivers installed (both Marvel and Atheros)?

Are you sure you are connecting through the card nic and not the wireless adapter?

I had a recent situation where I would periodically lose my network connection upon reboot, and it turned out my motherboard was failing. I'd have to reboot three or four times, couldn't ipconfig /release ipconfig /renew or anything like that.
My System SpecsSystem Spec
14 Jan 2012   #3

Windows 7 Home 64bit
 
 

Sorry, I meant but didn't say that it looks like my network connection might be resetting. Sometimes I get the actual "network connection reset" error message when trying to load a page but sometimes it just takes forever to load and eventually comes through.

I have all of the latest drivers installed. I double checked and I don't think I could be connecting through the wireless adapter-- I don't have a wireless connection available to me and I currently have the wireless card disabled (done during the attempt to fix the unidentified network problem).

I just tried pinging google (I'm new to pinging, I don't know if there's a better way to do this but I pinged the alpha first then used that to get the numeric to ping?) and the results were--


HTML Code:
C:\Users\Joyce>ping www.google.com

Pinging www.l.google.com [74.125.113.106] with 32 bytes of data:
Request timed out.
Reply from 74.125.113.106: bytes=32 time=38ms TTL=51
Reply from 74.125.113.106: bytes=32 time=39ms TTL=51
Reply from 74.125.113.106: bytes=32 time=39ms TTL=51

Ping statistics for 74.125.113.106:
    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
    Minimum = 38ms, Maximum = 39ms, Average = 38ms

C:\Users\Joyce>ping 74.125.113.106

Pinging 74.125.113.106 with 32 bytes of data:
Reply from 74.125.113.106: bytes=32 time=40ms TTL=51
Reply from 74.125.113.106: bytes=32 time=37ms TTL=51
Reply from 74.125.113.106: bytes=32 time=38ms TTL=51
Reply from 74.125.113.106: bytes=32 time=38ms TTL=51

Ping statistics for 74.125.113.106:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 37ms, Maximum = 40ms, Average = 38ms
However I'm not at all sure how to interpret this. All I can say is that after the unidentified network problem miraculously disappeared somehow, now my connection is incredibly slow.

I attempted to use speedtest.net to try to get some numbers for you. My download speed was 11.68mbps then 5.32mbps... but both times I tried it returned an error when attempting check upload speed - "Upload Test Error - Upload test returned an error when trying to read the upload file".

I use the most updated version of Firefox, and I've updated and ran Avast and MalwareBytes to check that my computer is clean. There's practically no files or programs on the computer to slow it down-- I haven't restored my files after reformatting the last time.

Motherboard failure doesn't sound good. At all. This computer is only a year old. Is that an expensive repair?
My System SpecsSystem Spec
.


14 Jan 2012   #4

Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
 
 

Are you able to go to a wireless network for testing? It would be interesting to see if you are not affected by the wireless card.

25% loss is not good, though it was only 1 in 4 for a one time test.

Let's try connecting to Google using the ip address:

Google

(**EDIT ugh... that was 74.125.113.106 with http:// before it**)

Does the page load any faster? If so, we may have to look at using another DNS.
My System SpecsSystem Spec
14 Jan 2012   #5

Windows 7 Home 64bit
 
 

Yes, connecting through the IP address worked much faster.

I haven't checked this computer on a wireless connection in a few days, but when I was having the Unidentified Network issue, I was able to use the wireless connection at my library. It was just my wired connection that was a problem, apparently.

I have a few errands I should run today so I can take the laptop with me and double check the connection.
My System SpecsSystem Spec
14 Jan 2012   #6

Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
 
 

You can try hard coding the free Google DNS, just to see if it's better.

Google Public DNS
My System SpecsSystem Spec
14 Jan 2012   #7

Windows 7 Home 64bit
 
 

Yikes, well, when I tried hardcoding the DNS it sent me back to the Unidentified Network problem and denied all internet access.

I set it back to configure the DNS automatically, still no connection, then restarted and crossed my fingers. Luckily, that brought me back to connectivity, though it's still slow. (Pinged gmail and had a 50% loss this time, sigh)

HTML Code:
C:\Users\Joyce>ping www.gmail.com

Pinging googlemail.l.google.com [72.14.204.18] with 32 bytes of data:
Reply from 72.14.204.18: bytes=32 time=30ms TTL=53
Request timed out.
Request timed out.
Reply from 72.14.204.18: bytes=32 time=49ms TTL=53

Ping statistics for 72.14.204.18:
    Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
    Minimum = 30ms, Maximum = 49ms, Average = 39ms

C:\Users\Joyce>ping 72.14.204.18

Pinging 72.14.204.18 with 32 bytes of data:
Reply from 72.14.204.18: bytes=32 time=27ms TTL=53
Reply from 72.14.204.18: bytes=32 time=26ms TTL=53
Reply from 72.14.204.18: bytes=32 time=30ms TTL=53
Reply from 72.14.204.18: bytes=32 time=28ms TTL=53

Ping statistics for 72.14.204.18:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 26ms, Maximum = 30ms, Average = 27ms
My System SpecsSystem Spec
14 Jan 2012   #8

Windows
 
 

Just a thought, but have you called Time Warner and asked them to do a line test? Sounds like you've done quite a bit on the computer side already. TW should also have the ability to read service data from your modem, check your signal levels and any logged errors. You may be able to see the logs yourself by putting 10.235.192.1 into your web browser.

Don't rule out bad wiring, loose connections or splitters in cable lines. Take a look around where your lines come into the house and check that all lines and connections are good and tight.

Find a free wifi hotspot like a coffee shop and try to connect your laptop wirelessly. If you get a decent internet connection, it would rule out most of your laptop with the exception of the LAN card & settings and point more towards TW & wiring.
My System SpecsSystem Spec
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 LAN Unidentified Network Problem Resurrected




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