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No cable broadband connection.

Discussion in 'Networking' started by MurphSRFC, Oct 15, 2008.

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  1. MurphSRFC

    MurphSRFC Thread Starter

    Joined:
    Oct 10, 2008
    Messages:
    5
    I suddenly found myself unable to get cable broadband connection. The router is working perfectly but there is no response when I open Firefox/I Explorer. The icons tell me “a network cable is unplugged” even though it isn’t and the Network Connections folder always shows the Local Area Connection icon with a red X. I initially suspected a virus and so went to the Malware forum here but it appears this may be the right place to air my problem.

    Two other things to add:

    I can use my old dial-up line and also wireless from the local library works too (am writing from there now).

    The laptop can’t communicate with devices such as an external hard drive/mp3 player/cd bruner that I have tried connecting via USB
     
  2. pedroguy

    pedroguy

    Joined:
    Jan 28, 2001
    Messages:
    6,523
    Let's see if I can get you started.I am sure that other techs will pick up with some more suggestions.
    Have you added any hardware/software lately?
    Can you ping the router?If you can ping the router,ping the following:

    Have you tried a direct connect to the modem,bypassing the router?
    Take a look in device manager at network adapters.No yellow exclamation points,etc,would be good.
    If you have a red x through the local area connection,could also mean a bad network
    cable or something amiss with the adapter itself(thus looking in device manager)
    Also good to know would be:
    Operating system aND LEVEL
    Make and models of modem and router
    Who is your ISP.

    Also,with router connected.


    On any affected computer, I'd also like to see this:

    Hold the Windows key and press R, then type CMD (COMMAND for W98/WME) to open a command prompt:

    Type the following commands:

    PING 206.190.60.37

    PING yahoo.com

    NBTSTAT -n

    IPCONFIG /ALL

    Right click in the command window and choose Select All, then hit Enter.
    Paste the results in a message here.

    If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.
     
  3. TerryNet

    TerryNet Moderator

    Joined:
    Mar 23, 2005
    Messages:
    78,048
    First Name:
    Terry
    Bad router LAN port, bad cable or bad NIC probably.
     
  4. MurphSRFC

    MurphSRFC Thread Starter

    Joined:
    Oct 10, 2008
    Messages:
    5
    Thanks for your help, Pedroguy. I have got wi-fi connection with the laptop now but problems remain with cable connection and USB link to external hard disk. Here are replies to the questions/instructions you gave:

    Have you added any hardware/software lately? NO
    Have you tried a direct connect to the modem,bypassing the router? Don’t know how to do this.

    The only yellow exclamation mark in Device Manager is SCSI/RAID Host Controller [“Windows cannot load the device driver for this hardware because a previous instance of the device driver is still in memory. (Code 38)”]

    Dell Inspiron 2650
    Windows XP Sp2
    Modem: 3Com 3C920 (?)
    Router: Zyxel P660HW-D1
    ISP: Telefonica (Spain)


    Also,with router connected or on any affected computer, I'd also like to see this:

    Hold the Windows key and press R, then type CMD (COMMAND for W98/WME) to open a command prompt:

    Type the following commands:

    PING 206.190.60.37

    PING yahoo.com

    NBTSTAT -n

    IPCONFIG /ALL

    Right click in the command window and choose Select All, then hit Enter.
    Paste the results in a message here.


    Microsoft Windows XP [Version 5.1.2600]
    (C) Copyright 1985-2001 Microsoft Corp.

    C:\Documents and Settings\John Murphy>PING 206.190.60.37

    Pinging 206.190.60.37 with 32 bytes of data:

    Reply from 206.190.60.37: bytes=32 time=159ms TTL=53
    Reply from 206.190.60.37: bytes=32 time=150ms TTL=53
    Reply from 206.190.60.37: bytes=32 time=154ms TTL=53
    Reply from 206.190.60.37: bytes=32 time=150ms TTL=53

    Ping statistics for 206.190.60.37:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 150ms, Maximum = 159ms, Average = 153ms

    C:\Documents and Settings\John Murphy>PING yahoo.com

    Pinging yahoo.com [206.190.60.37] with 32 bytes of data:

    Reply from 206.190.60.37: bytes=32 time=158ms TTL=53
    Reply from 206.190.60.37: bytes=32 time=154ms TTL=53
    Reply from 206.190.60.37: bytes=32 time=150ms TTL=53
    Reply from 206.190.60.37: bytes=32 time=153ms TTL=53

    Ping statistics for 206.190.60.37:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 150ms, Maximum = 158ms, Average = 153ms

    C:\Documents and Settings\John Murphy>NBTSTAT -n

    Local Area Connection:
    Node IpAddress: [0.0.0.0] Scope Id: []

    No names in cache

    Wireless Network Connection:
    Node IpAddress: [192.168.1.33] Scope Id: []

    NetBIOS Local Name Table

    Name Type Status
    ---------------------------------------------
    JOHNFMURPHY <00> UNIQUE Registered
    JOHNFMURPHY <20> UNIQUE Registered
    MSHOME <00> GROUP Registered

    C:\Documents and Settings\John Murphy>IPCONFIG /ALL

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : johnfmurphy
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Unknown
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Description . . . . . . . . . . . : 3Com 3C920 Integrated Fast Ethernet
    Controller (3C905C-TX Compatible)
    Physical Address. . . . . . . . . : 00-08-74-05-08-09

    Ethernet adapter Wireless Network Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Conceptronic 54g Wireless PC-Card
    Physical Address. . . . . . . . . : 00-80-5A-4E-9E-9F
    Dhcp Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    IP Address. . . . . . . . . . . . : 192.168.1.33
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 192.168.1.1
    DHCP Server . . . . . . . . . . . : 192.168.1.1
    DNS Servers . . . . . . . . . . . : 80.58.61.250
    80.58.61.254
    Lease Obtained. . . . . . . . . . : 17 October 2008 15:10:30
    Lease Expires . . . . . . . . . . : 20 October 2008 15:10:30

    C:\Documents and Settings\John Murphy>
     
  5. pedroguy

    pedroguy

    Joined:
    Jan 28, 2001
    Messages:
    6,523
    Wireless portion of router seems to be working.
    I tend to agree with Terry about bad cable or lan port.
    To bypass router,unplug lan cable from router to modem and plug directly from modem to PC network adapter.In doing this you will need to do a power reset of the modem to have this new configuration take affect .And also if you re plug through the router,a power reset of the modem would be again necessary.
    If this does not fix it,try the other ethernet cable.
     
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