Multiple problems with Ethernet connection

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  1. Posts : 11
    Windows 7 Home Premium 64-bit
       #1

    Multiple problems with Ethernet connection


    I've been fiddling around with my ethernet for a while and I'm at wit's end...

    Starting about a week ago, my ethernet wouldn't be connecting when the computer is booted up. A quick reset or diagnose and it would work again. Now it simply refuses to connect, switching between the "no default gateway" problem to the "connects to router but no internet" problem.

    My NIC has had a problem before and it's running on non-default configurations, with all the offloads disabled and Speed & Duplex set to 10Mbps Full Duplex. If Speed & Duplex is set to anything above 10Mbps the NIC would be unable to connect, stating "Network cable unplugged", but continues to try and identify the network every few seconds.

    Expanding on the "no default gateway" problem: I've reset the NIC multiple times, sometimes it would set its IP address to one that I've never seen:
    169.254.60.153
    The usual IP address I have should be:
    192.168.1.x
    Where x is usually a number between 1 to 10.
    Whenever the IP address is set to that, my ethernet would connect to "Unidentified Network" rather than the one I'm supposed to connect to.
    I've tried to manually set the IP address, but it doesn't work.

    I've tried command prompts like
    Code:
    ipconfig /flushdns
    netsh winsock reset catalog
    netsh int ipv4 reset reset.log
    I've also tried to roll back the NIC's driver and power cycle the router and modem multiple times.

    Can you guys help me pinpoint my problem? Here's the ipconfig /all if you guys need it:
    Code:
    Windows IP Configuration
    
       Host Name . . . . . . . . . . . . : Nanson-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 . . . . . . . . . . . : Realtek PCIe GBE Family Controller
       Physical Address. . . . . . . . . : 50-E5-49-53-49-F3
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
       Link-local IPv6 Address . . . . . : fe80::2c6d:fdf9:c32b:3c99%12(Preferred) 
       Autoconfiguration IPv4 Address. . : 169.254.60.153(Preferred) 
       Subnet Mask . . . . . . . . . . . : 255.255.0.0
       Default Gateway . . . . . . . . . : 
       DHCPv6 IAID . . . . . . . . . . . : 424731977
       DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-18-1A-73-50-E5-49-53-49-F3
       DNS Servers . . . . . . . . . . . : 8.8.8.8
                                           8.8.4.4
       NetBIOS over Tcpip. . . . . . . . : Enabled
    
    Wireless LAN adapter Wireless Network Connection:
    
       Connection-specific DNS Suffix  . : 
       Description . . . . . . . . . . . : Realtek 8180 Extensible 802.11b Wireless Device
       Physical Address. . . . . . . . . : 00-05-5D-99-9C-A4
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
       Link-local IPv6 Address . . . . . : fe80::5046:a420:9a47:83d1%11(Preferred) 
       IPv4 Address. . . . . . . . . . . : 192.168.1.3(Preferred) 
       Subnet Mask . . . . . . . . . . . : 255.255.255.0
       Lease Obtained. . . . . . . . . . : October-15-13 3:46:25 PM
       Lease Expires . . . . . . . . . . : October-16-13 3:46:24 PM
       Default Gateway . . . . . . . . . : 192.168.1.1
       DHCP Server . . . . . . . . . . . : 192.168.1.1
       DHCPv6 IAID . . . . . . . . . . . : 385877341
       DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-18-1A-73-50-E5-49-53-49-F3
       DNS Servers . . . . . . . . . . . : 192.168.1.1
       NetBIOS over Tcpip. . . . . . . . : Enabled
    
    Tunnel adapter isatap.{56899AC3-665E-4B80-9355-BC581B9DD353}:
    
       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:
    
       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. . . . . . . . . . . : 2001:0:9d38:6abd:103e:1b0b:9c0a:8586(Preferred) 
       Link-local IPv6 Address . . . . . : fe80::103e:1b0b:9c0a:8586%14(Preferred) 
       Default Gateway . . . . . . . . . : ::
       NetBIOS over Tcpip. . . . . . . . : Disabled
    
    Tunnel adapter isatap.{01C50DCE-B872-41F3-B99E-B42D391A4D0C}:
    
       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
      My Computer


  2. Posts : 10,796
    Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
       #2

    wireless works fine to same router?
    169.254.x.y address means: it cannot get an ip address form dhcp server. Link-local address - Wikipedia, the free encyclopedia
      My Computer


  3. Posts : 11
    Windows 7 Home Premium 64-bit
    Thread Starter
       #3

    Yes, wireless works fine.
      My Computer


  4. Posts : 10,796
    Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
       #4

    Why did you set dns servers manually on ehernet network card?
    DNS Servers . . . . . . . . . . . : 8.8.8.8
    8.8.4.4

    Did you try replacing networkcable? Did you try using another router port?
      My Computer


  5. Posts : 11
    Windows 7 Home Premium 64-bit
    Thread Starter
       #5

    The DNS servers were manually set because of an earlier problem, when I had the computer just built. If I remember correctly, those servers have something to do with Google, and I just kept it because it worked. :/

    Can't find another network cable in my home; I want to try everything I can do before I have to cough out some for replacement parts, plus I don't have total control over the setup in my home.

    Will try a different port, though I don't remember which port was mine...

    Edit: Tried to switch the router port once, and reset the NIC so that it gets a gateway (It's almost like rolling dice). Connects, but no internet. I'm going to try the third port.
    Last edited by un2978; 15 Oct 2013 at 17:02. Reason: First test
      My Computer


  6. Posts : 10,796
    Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
       #6

    what you can try:
    1. Detach network cable form the faulty machine
    2. attach it to another machine
    3. test it
      My Computer


  7. Posts : 11
    Windows 7 Home Premium 64-bit
    Thread Starter
       #7

    Connected the cable from the wall socket to a laptop. The connection seems to be fine. Ran a speed test and a ping test to make sure.

    Does that mean my NIC is faulty?
      My Computer


  8. Posts : 10,796
    Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
       #8

    un2978 said:
    Connected the cable from the wall socket to a laptop. The connection seems to be fine. Ran a speed test and a ping test to make sure.

    Does that mean my NIC is faulty?
    It means:
    • the laptop is connecting wirelessly(?) Are you sure you didn't connect wireless?!!!
    • Faulty NIC
    • Faulty driver
    • Faulty network settings
      My Computer


  9. Posts : 10,796
    Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
       #9

    Post screenshot of device management please with branch "network adapters" expanded
      My Computer


  10. Posts : 11
    Windows 7 Home Premium 64-bit
    Thread Starter
       #10

    I made sure to disable the wireless adapter on the laptop before I connected. The taskbar icon indicated that connection was made through ethernet.

    As for the device manager screenshot - is that what you want? (attachment)
    Attached Thumbnails Attached Thumbnails Multiple problems with Ethernet connection-devicemanager.jpg  
      My Computer


 
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