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Internet suddenly stops working

Discussion in 'Networking' started by SomniumDS, Apr 3, 2008.

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  1. SomniumDS

    SomniumDS Thread Starter

    Joined:
    Oct 22, 2007
    Messages:
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    Windows Vista

    I start the computer and everything works fine. After a few hours my internet connection disappears. The computer says that it is still connected but can't communicate with other sites. Once I restart the computer, it is back in working condition, and loses connection again eventually.
     
  2. JohnWill

    JohnWill Retired Moderator

    Joined:
    Oct 19, 2002
    Messages:
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    Try these simple tests when it loses the connection.

    Hold the Windows key and press R, then type CMD to open a command prompt:

    Type the following commands, one at a time, followed by the Enter key:

    IPCONFIG

    PING <computer_IP_address>

    PING <default_gateway_address>

    PING 216.109.112.135

    PING yahoo.com

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

    <computer_IP_address> - The IP Address of your computer, obtained from the IPCONFIG command above.

    <default_gateway_address> - The IP address of the Default Gateway, obtained from the IPCONFIG command above.


    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. SomniumDS

    SomniumDS Thread Starter

    Joined:
    Oct 22, 2007
    Messages:
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    Here's what I've got... restarted comp to get back internet...

    Microsoft Windows [Version 6.0.6000]
    Copyright (c) 2006 Microsoft Corporation. All rights reserved.

    C:\Users\Mr.Lee>ipconfig

    Windows IP Configuration


    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . : nyc.rr.com
    Link-local IPv6 Address . . . . . : fe80::5992:a0e4:fc10:6762%8
    IPv4 Address. . . . . . . . . . . : 24.90.64.56
    Subnet Mask . . . . . . . . . . . : 255.255.248.0
    Default Gateway . . . . . . . . . : 24.90.64.1

    Tunnel adapter Local Area Connection* 6:

    Connection-specific DNS Suffix . : nyc.rr.com
    Link-local IPv6 Address . . . . . : fe80::200:5efe:24.90.64.56%11
    Default Gateway . . . . . . . . . :

    Tunnel adapter Local Area Connection* 7:

    Connection-specific DNS Suffix . :
    IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e50:8b7:2ca1:e7a5:bfc7
    Link-local IPv6 Address . . . . . : fe80::8b7:2ca1:e7a5:bfc7%9
    Default Gateway . . . . . . . . . :

    Tunnel adapter Local Area Connection* 9:

    Connection-specific DNS Suffix . : nyc.rr.com
    Temporary IPv6 Address. . . . . . : 2002:185a:4038::185a:4038
    Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301

    C:\Users\Mr.Lee>ping 24.90.64.56

    Pinging 24.90.64.56 with 32 bytes of data:

    Reply from 24.90.64.56: bytes=32 time<1ms TTL=128
    Reply from 24.90.64.56: bytes=32 time<1ms TTL=128
    Reply from 24.90.64.56: bytes=32 time<1ms TTL=128
    Reply from 24.90.64.56: bytes=32 time<1ms TTL=128

    Ping statistics for 24.90.64.56:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

    C:\Users\Mr.Lee>ping 24.90.64.1

    Pinging 24.90.64.1 with 32 bytes of data:

    Reply from 24.90.64.1: bytes=32 time=1373ms TTL=255
    Reply from 24.90.64.1: bytes=32 time=748ms TTL=255
    Reply from 24.90.64.1: bytes=32 time=18ms TTL=255
    Reply from 24.90.64.1: bytes=32 time=1437ms TTL=255

    Ping statistics for 24.90.64.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 18ms, Maximum = 1437ms, Average = 894ms

    C:\Users\Mr.Lee>ping 216.109.112.135

    Pinging 216.109.112.135 with 32 bytes of data:

    Reply from 216.109.112.135: bytes=32 time=791ms TTL=52
    Reply from 216.109.112.135: bytes=32 time=1339ms TTL=52
    Reply from 216.109.112.135: bytes=32 time=660ms TTL=52
    Reply from 216.109.112.135: bytes=32 time=33ms TTL=52

    Ping statistics for 216.109.112.135:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 33ms, Maximum = 1339ms, Average = 705ms

    C:\Users\Mr.Lee>ping yahoo.com

    Pinging yahoo.com [66.94.234.13] with 32 bytes of data:

    Reply from 66.94.234.13: bytes=32 time=115ms TTL=51
    Reply from 66.94.234.13: bytes=32 time=1383ms TTL=51
    Reply from 66.94.234.13: bytes=32 time=789ms TTL=51
    Reply from 66.94.234.13: bytes=32 time=121ms TTL=51

    Ping statistics for 66.94.234.13:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 115ms, Maximum = 1383ms, Average = 602ms

    C:\Users\Mr.Lee>
     
  4. JohnWill

    JohnWill Retired Moderator

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    This appears to be a good connection, you can ping Internet sites by name. Did you do this when you lost the connection, or after you rebooted?
     
  5. SomniumDS

    SomniumDS Thread Starter

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    Oct 22, 2007
    Messages:
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    did it when i lost the connection. Rebooted afterwards to regain connection.
     
  6. JohnWill

    JohnWill Retired Moderator

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    So, that was the IPCONFIG when the connection didn't work? If so, that points to a browser issue, not an Internet connectivity issue. Perhaps you have a security product that is malfunctioning? Maybe you have malware that suddenly grabs onto the machine?
     
  7. SomniumDS

    SomniumDS Thread Starter

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    Oct 22, 2007
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    hmm... how would i go about fixing it?
     
  8. JohnWill

    JohnWill Retired Moderator

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    First off, try booting in Safe Mode with Networking, see if that allows the browser to connect.
     
  9. SomniumDS

    SomniumDS Thread Starter

    Joined:
    Oct 22, 2007
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    well the thing is once i reboot it works again... then a couple hours later it stops working
     
  10. JohnWill

    JohnWill Retired Moderator

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    Can you run for an extended time in safe mode to see if it makes a difference?

    Have you tried a different browser? Try with FireFox and see if you see the same symptoms.
     
  11. SomniumDS

    SomniumDS Thread Starter

    Joined:
    Oct 22, 2007
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    my default is Firefox. Same thing happens with IE.
     
  12. JohnWill

    JohnWill Retired Moderator

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    Sounds a lot like malware since it runs for some period of time before dying.
     
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