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Windows 7: Connectivity problems: Unidentified Network

06 Dec 2011   #11
Alecossy

Windows 7 Ultimate x64
 
 

Any new idea or suggestion? Especially from you, Corazon?


My System SpecsSystem Spec
.
06 Dec 2011   #12
Corazon

Windows 7 Professional SP1 32-bit
 
 

Hmm. One, actually. (BTW, you didn't tell me if you restarted the router or reset it to factory defaults.)

From what I understand you have 3 computers hooked up to the router...usually routers seem to have 4 Ethernet ports, so I'm assuming you still have an unused one. What if you simply unplug the Ethernet cable going to the PC that won't connect properly and plug the cable into the 4th port?

I'm starting to think we have to deal with this as a hardware problem, either on the PC's end or on the router's end. If it isn't the router then we'll have to assume the PC's NIC (network controller) is going bad.

Only way to find out for sure would be installing a PCI Ethernet adapter and using that instead of the on-board NIC.
My System SpecsSystem Spec
07 Dec 2011   #13
Alecossy

Windows 7 Ultimate x64
 
 

It surely is a PC related problems... Using the same cable to connect the laptop doesnt show any problem...
At first i simply restarted it... Then I tried resetting it, nothing changed...
I'm going to buy a network card as soon as I get back home from university... they cost like 5 euro-bucks so that's not a big problem at all...
I just hope that fixes it...
My System SpecsSystem Spec
.

07 Dec 2011   #14
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

So router is working fine and cable works on other pc/laptop. Did you try another working lan-port on router?
When connected to router enter command prompt and do:
ipconfig
route print -4

Do you see 192.168 addresses?

post output (something like):
Draadloos LAN-adapter voor Draadloze netwerkverbinding:
Verbindingsspec. DNS-achtervoegsel:
Link-local IPv6-adres . . . . . . : fe80::dc7d:1b91:3c56:68c1%11
IPv4-adres. . . . . . . . . . . . : 192.168.10.100
Subnetmasker. . . . . . . . . . . : 255.255.255.0
Standaardgateway. . . . . . . . . : 192.168.10.1
-------------------------------
IPv4 routetabel
===========================================================================
Actieve routes:
Netwerkadres Netmasker Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.10.1 192.168.10.100 20
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.10.0 255.255.255.0 On-link 192.168.10.100 276
192.168.10.100 255.255.255.255 On-link 192.168.10.100 276
192.168.10.255 255.255.255.255 On-link 192.168.10.100 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.10.100 276
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.10.100 276
===========================================================================
My System SpecsSystem Spec
07 Dec 2011   #15
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Goto network centre and display your network adapters. All displayed without errors? Goto devicemanager. No exclamation and question marks? your network card is listed there?
My System SpecsSystem Spec
07 Dec 2011   #16
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

can you ping in command prompt?
ping 127.0.0.1 (this pings your own computer, as a test to test network stack)
ping 192.168.x.y (this pings router) To determine the ip address of router do route print -4 on another home pc. In this example its address is 192.168.10.1

IPv4 routetabel
===========================================================================
Actieve routes:
Netwerkadres Netmasker Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.10.1 192.168.10.100 20
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.10.0 255.255.255.0 On-link 192.168.10.100 276
192.168.10.100 255.255.255.255 On-link 192.168.10.100 276
192.168.10.255 255.255.255.255 On-link 192.168.10.100 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.10.100 276
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.10.100 276
===========================================================================
My System SpecsSystem Spec
08 Dec 2011   #17
Alecossy

Windows 7 Ultimate x64
 
 

Okay, ran a couple of tests... sorry I didn't answer sooner but yesterday I had things to do...
Now, let's see what we have...
Result of ping on localhost, router and route print -4:
Code:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Alecossy>ping 127.0.0.1

Pinging 127.0.0.1 with 32 bytes of data:
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Ping statistics for 127.0.0.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\Alecossy>ping 192.168.0.1

Pinging 192.168.0.1 with 32 bytes of data:
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.

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

C:\Users\Alecossy>route print -4
===========================================================================
Interface List
 13...00 19 66 bd a4 24 ......NVIDIA nForce Networking Controller
  1...........................Software Loopback Interface 1
 11...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
 12...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
        127.0.0.0        255.0.0.0         On-link         127.0.0.1    306
        127.0.0.1  255.255.255.255         On-link         127.0.0.1    306
  127.255.255.255  255.255.255.255         On-link         127.0.0.1    306
      169.254.0.0      255.255.0.0         On-link    169.254.49.174    276
   169.254.49.174  255.255.255.255         On-link    169.254.49.174    276
  169.254.255.255  255.255.255.255         On-link    169.254.49.174    276
        224.0.0.0        240.0.0.0         On-link         127.0.0.1    306
        224.0.0.0        240.0.0.0         On-link    169.254.49.174    276
  255.255.255.255  255.255.255.255         On-link         127.0.0.1    306
  255.255.255.255  255.255.255.255         On-link    169.254.49.174    276
===========================================================================
Persistent Routes:
  None

C:\Users\Alecossy>ipconfig

Windows IP Configuration


Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . :
   Autoconfiguration IPv4 Address. . : 169.254.49.174
   Subnet Mask . . . . . . . . . . . : 255.255.0.0
   Default Gateway . . . . . . . . . :

Tunnel adapter isatap.{AA59ECCC-814E-446B-AC9A-FAF6D898BBD3}:

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

Tunnel adapter Teredo Tunneling Pseudo-Interface:

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

C:\Users\Alecossy>
Two screenshots that show us the status of the network adapter and of the network map...


My System SpecsSystem Spec
08 Dec 2011   #18
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

All seems to be configured fine. You send some bytes to router but it doesn't respond ... strange. That's why your computer doens't find the dhcp-server builtin the router. It configures it's an automatic ip address in 169.254 range (see your screenshots). ping 192.168.0.1 fails because it doesn't know the route to it (no default gateway). I'll respond later what to do next
My System SpecsSystem Spec
08 Dec 2011   #19
Alecossy

Windows 7 Ultimate x64
 
 

What do you think, should I delay the buying of a new network card?
My System SpecsSystem Spec
08 Dec 2011   #20
Kaktussoft

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

This is a fresh win7 install? no anti4us yet installed? try booting into "safe mode" just to test. Enter ipconfig or route print -4 command from there. Do you get a 192.168.0.x address?
My System SpecsSystem Spec
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