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Win7 LAN Network Shows "Unidentified Network"

Last response: in Networking
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January 4, 2013 2:50:29 PM

Ok, i had no idea if this should go under Win7 or WAN/LAN so i just picked one.


I connect directly to my school's network using a LAN cable to link my Windows 7 Home Premium laptop to the LAN port in my wall.

Recently, i went home for the weekend. After coming back on Monday, i connected the LAN cable, booted up, and now the Network icon in the lower right corner is showing a yellow triangle.

Funny thing is, it had been working perfectly for 2 months before this incident.

My Network Connections shows that my NIC is called "Realtek PCIe FE Family Controller", if thats any help.
Also, i ran the Win7 Troubleshooter and the result was: "Default Gateway couldn't be found".

Here is my /ipconfig all

=============================================================================

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

C:\Users\Teik Siang>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : g4-1321tx
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : nus.edu.sg

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe FE Family Controller
Physical Address. . . . . . . . . : 80-C1-6E-47-45-E7
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::794e:5663:c9f5:e1e6%33(Preferred)
IPv4 Address. . . . . . . . . . . : 172.19.202.167(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 172.19.192.1
DHCPv6 IAID . . . . . . . . . . . : 562086254
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-18-78-B4-96-C0-18-85-49-87-77

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

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : nus.edu.sg
Description . . . . . . . . . . . : Broadcom 4313GN 802.11b/g/n 1x1 Wi-Fi Ada
pter
Physical Address. . . . . . . . . : C0-18-85-49-87-77
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::e8a0:c398:578f:cdce%11(Preferred)
IPv4 Address. . . . . . . . . . . : 172.23.67.137(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.252.0
Lease Obtained. . . . . . . . . . : Saturday, 5 January, 2013 12:41:06 AM
Lease Expires . . . . . . . . . . : Saturday, 5 January, 2013 1:41:05 AM
Default Gateway . . . . . . . . . : 172.23.64.1
DHCP Server . . . . . . . . . . . : 137.132.5.199
DHCPv6 IAID . . . . . . . . . . . : 314579077
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-18-78-B4-96-C0-18-85-49-87-77

DNS Servers . . . . . . . . . . . : 137.132.0.254
137.132.0.252
Primary WINS Server . . . . . . . : 137.132.4.25
Secondary WINS Server . . . . . . : 137.132.4.5
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
Physical Address. . . . . . . . . : C0-18-85-49-87-77
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{7608562C-EA84-4DDA-8A11-9C61AE2C8CFC}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{475E81D1-2CCE-485A-BBE3-896A3C9E19AB}:

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

Tunnel adapter isatap.nus.edu.sg:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Teik Siang>

=============================================================================

Thanks for any help!
January 4, 2013 4:34:09 PM

I have the exact same problem. Had a wired connection straight to my laptop working fine for 2 months. Went to Dubai for New Years a week back(used wireless in the hotel there), came back, plugged the cable back in and I get Unidentified Network - No Network Access. Wireless to other networks is fine and my dongle works too. I've been looking for a solution for 2 days now, trying everything with no luck.
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Anonymous
January 7, 2013 4:05:59 PM

Hi i had the same problem and none of this helped but i kept trying an in the adapter configuration i found (wireless mode selection it was automated) i changed it to b/g and it is ok. no unidentified network and acces to the internet. hope this helps everyone.





Before this i tried everything. phys adress, dhcp enable dissable sp1 uninstal
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Related resources
January 8, 2013 5:28:16 AM

Ok, the problem fixed itself after i went home for 2 days and came back. God knows what caused it, according to my friend, it happens to everyone where i stay. Lol.
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May 28, 2014 1:30:03 PM

I have windows 8, but I had the same problem, but I fixed it simply by turning off then on my Ethernet port.
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!