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Network problem after crash

Discussion in 'Networking' started by PatMG, Jan 25, 2013.

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  1. PatMG

    PatMG Thread Starter

    Joined:
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    Hi there,

    I have a wired network at home with 4 computers

    Computer A --> Acer with Win 7 Home Premium - 64 bits
    Computer B --> Acer with Win 7 Home Premium - 64 bits
    Computer C --> Dell with Win XP
    Computer D --> Laptop with Win XP

    Until 2 weeks ago I had the 4 computers in a home network, sharing files and printers, without problems.
    2 weeks ago, the HD of the "computer A" crashed.
    I always have an updated backup, so I didn't miss any document. However, it was necessary to reinstall the OS. All is working fine, except the Network

    I confirmed the permissions and all the docs are supposed to allow sharing, but this is the current situation (I know that this is odd)

    Computer A (the one that crashed)--> I can see and use the files of the Computers A, B, C and D
    Computer B --> I can see and use the files of the Computers A, B, C and D
    Computer C --> I can see and use the files of the Computers B, C and D but I can't see Computer A (the one that crashed)
    Computer D --> I can see and use the files of the Computers B, C and D but I can't see Computer A (the one that crashed)

    The odd thing is that, in the computer that crashed, the network works, however in the XP computers I can't see the Win7 computer that crashed
    Suggestions, ideas, solutions are very welcome!!! :D

    Pat
     
  2. TerryNet

    TerryNet Moderator

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    Disconnect all devices except A and either C or D from the network. Then show for A and C or D (whichever is still on the network) ...

    Open a (black) Command Prompt window:
    Hold the Windows logo key and press r; in the Run box type cmd and click on OK.

    Type the following commands:

    nbtstat -n

    IPCONFIG /ALL

    [Note that there is no space between the slash and ALL.]

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

    If necessary use a text file and removable media to copy the results to a computer with internet access.
     
  3. PatMG

    PatMG Thread Starter

    Joined:
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    Hi TerryNet, thank you for your answer

    This is the information

    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.
    C:\Users\Patricia>nbtstat -n
    Local Area Connection:
    Node IpAddress: [192.168.2.10] Scope Id: []
    NetBIOS Local Name Table
    Name Type Status
    ---------------------------------------------
    PATRICIA-PC <00> UNIQUE Registered
    HOMEGROUP <00> GROUP Registered
    PATRICIA-PC <20> UNIQUE Registered
    HOMEGROUP <1E> GROUP Registered
    HOMEGROUP <1D> UNIQUE Registered
    ..__MSBROWSE__.<01> GROUP Registered
    C:\Users\Patricia>ipconfig /all
    Windows IP Configuration
    Host Name . . . . . . . . . . . . : Patricia-PC
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Broadcast
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : gateway.2wire.net
    Ethernet adapter Local Area Connection:
    Connection-specific DNS Suffix . : gateway.2wire.net
    Description . . . . . . . . . . . : Intel(R) 82578DC Gigabit Network Connecti
    on
    Physical Address. . . . . . . . . : 90-FB-A6-4D-1D-1D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::6038:a08b:65cf:2fab%10(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.2.10(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : January-26-13 9:41:14 AM
    Lease Expires . . . . . . . . . . : January-29-13 9:41:14 AM
    Default Gateway . . . . . . . . . : 192.168.2.1
    DHCP Server . . . . . . . . . . . : 192.168.2.1
    DHCPv6 IAID . . . . . . . . . . . : 194050982
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-18-75-19-C4-90-FB-A6-4D-1D-1D
    DNS Servers . . . . . . . . . . . : 192.168.2.1
    NetBIOS over Tcpip. . . . . . . . : Enabled
    Tunnel adapter isatap.gateway.2wire.net:
    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . : gateway.2wire.net
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    Tunnel adapter Local Area Connection* 9:
    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. . . . . . . . . . . : 2001:0:4137:9e76:c7b:28cb:bf18:6f96(Prefe
    rred)
    Link-local IPv6 Address . . . . . : fe80::c7b:28cb:bf18:6f96%12(Preferred)
    Default Gateway . . . . . . . . . : ::
    NetBIOS over Tcpip. . . . . . . . : Disabled
    C:\Users\Patricia>

    Thank you in advance
     
  4. TerryNet

    TerryNet Moderator

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    First Name:
    Terry
    And for the XP machine?
     
  5. PatMG

    PatMG Thread Starter

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    For the XP machine

    Microsoft Windows XP [Version 5.1.2600]
    (C) Copyright 1985-2001 Microsoft Corp.
    C:\>nbtstat -n
    Local Area Connection 2:
    Node IpAddress: [192.168.2.11] Scope Id: []
    NetBIOS Local Name Table
    Name Type Status
    ---------------------------------------------
    DELL <00> UNIQUE Registered
    HOMEGROUP <00> GROUP Registered
    DELL <20> UNIQUE Registered
    HOMEGROUP <1E> GROUP Registered
    HOMEGROUP <1D> UNIQUE Registered
    ..__MSBROWSE__.<01> GROUP Registered
    C:\>ipconfig /all
    Windows IP Configuration
    Host Name . . . . . . . . . . . . : DELL
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Broadcast
    IP Routing Enabled. . . . . . . . : Yes
    WINS Proxy Enabled. . . . . . . . : Yes
    DNS Suffix Search List. . . . . . : gateway.2wire.net
    Ethernet adapter Local Area Connection 2:
    Connection-specific DNS Suffix . : gateway.2wire.net
    Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network Connecti
    on
    Physical Address. . . . . . . . . : 00-07-E9-7E-2C-EE
    Dhcp Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    IP Address. . . . . . . . . . . . : 192.168.2.11
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 192.168.2.1
    DHCP Server . . . . . . . . . . . : 192.168.2.1
    DNS Servers . . . . . . . . . . . : 192.168.2.1
    Lease Obtained. . . . . . . . . . : Saturday, January 26, 2013 11:51:52
    AM
    Lease Expires . . . . . . . . . . : Tuesday, January 29, 2013 11:51:52 A
    M
    C:\>
     
  6. TerryNet

    TerryNet Moderator

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    They both claim to be the Master browser ("..__MSBROWSE__.<01> GROUP Registered") which means they are not "seeing" each other at all and that is probably caused by a firewall on one or both machines. My bet is on A.
     
  7. PatMG

    PatMG Thread Starter

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    Thank you for your answer.
    I deactivated the firewall (Norton360) --> no changes :(

    Should I delete + recreate the network?
     
  8. TerryNet

    TerryNet Moderator

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    Often you have to uninstall Norton and run Symantec's Norton Removal Tool. And then you can reinstall it after testing.

    After running the Removal Tool disconnect both PCs from the network and then reconnect.

    For testing now you don't have to just have the two computers on the network, but you do need to be aware of how many claim to be the Master Browser. There should be exactly one Master Browser on the network. When/if you get to that state it may still take 20 minutes or so before all computers get updated name information and the XPs are able to access the other computers by name.
     
  9. PatMG

    PatMG Thread Starter

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    Going back to your comment that there are two masters on the network, when I run nbtstat -n having A and C running connected to the network I got the following answers

    cmd on A W7 PC

    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.
    C:\>nbtstat -n
    Local Area Connection:
    Node IpAddress: [192.168.2.10] Scope Id: []
    NetBIOS Local Name Table
    Name Type Status
    ---------------------------------------------
    PATRICIA-PC <00> UNIQUE Registered
    HOMEGROUP <00> GROUP Registered
    PATRICIA-PC <20> UNIQUE Registered
    HOMEGROUP <1E> GROUP Registered
    HOMEGROUP <1D> UNIQUE Registered
    ..__MSBROWSE__.<01> GROUP Registered
    C:\>

    cmd on C XP PC

    Microsoft Windows XP [Version 5.1.2600]
    (C) Copyright 1985-2001 Microsoft Corp.
    C:\>nbtstat -n
    Local Area Connection 2:
    Node IpAddress: [192.168.2.11] Scope Id: []
    NetBIOS Local Name Table
    Name Type Status
    ---------------------------------------------
    DELL <00> UNIQUE Registered
    HOMEGROUP <00> GROUP Registered
    DELL <20> UNIQUE Registered
    HOMEGROUP <1E> GROUP Registered
    C:\>

    This I think it means that the W7 is the master of the network
    I can ping both PC from each other but when i try to open a folder in the C XP PC I still get the following error (see attached image).

    Is there any script that I can run from the A PC to review C PC permissions on the HOMEGROUP network

    How the administrator can change access permissions (we already did all the authorizations available on the W7 Change sharing options for different network profiles)

    Thank you in advance
     

    Attached Files:

  10. TerryNet

    TerryNet Moderator

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    Correct.

    There have been times when sharing a drive at the root (e.g., c: ) has not worked in Vista and Windows 7. So, can the XP now access a shared folder on PATRICIA-PC?
     
  11. PatMG

    PatMG Thread Starter

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    No, we still cannot access the share folders as shown below:

    From---------------------To-------------Shared Folders accessibility
    W7 (Patricia-PC) ------- XP (DELL)-----------Yes
    XP (DELL)---------------W7 (Patricia-PC)-----No *

    Note *: when try to access got error message already attached in previous entry.

    Thank you in advance
     
  12. TerryNet

    TerryNet Moderator

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    You uninstalled Norton and ran the Removal Tool, right?
     
  13. PatMG

    PatMG Thread Starter

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    Messages:
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    My apologies if I did a confusion with the information provided

    1 - For my first answers (26-Jan-2013 11:54 AM and 26-Jan-2013 03:12 PM) I understood that you asked to show one computer connected and the remaining 3 disconnected. So both texts are referred to Computer A and Computer C separatelly
    2 - My message 27-Jan-2013 12:20 PM shows the situation with both computers in the network.

    I didn't uninstall the Norton program because I wanted to be sure of this

    Thank you!
     
  14. TerryNet

    TerryNet Moderator

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    Guess I confused you pretty well and then misunderstood the first results. :( In post # 2 I was trying to ask for those results with exactly two PCs connected (partially to determine if they both claimed to be the Master Browser). You needn't do any more disconnecting of other computers.

    By the way, I referred to post # 2 because most of us display the time locally, so that post is 9:38 am for me, 10:38 for you, and middle of the afternoon in UK. :)

    Anyhow, regardless of the earlier confusion, the results you reported in posts # 9 and 11 are not pointing (for me) to a specific cause and fix. Here are some musings ...

    a. "Homegroup" is a feature in (only Windows 8 and) Windows 7. Using that for workgroup name makes me nervous. I don't know how/why that would cause this problem but I would change the workgroup name in those two computers. If that results in a fix you can then change the other two. You probably have to restart to make sure the name change is effective.

    b. Could be Norton. I am always suspicious of those firewalls, and when they are the culprit they often have to be uninstalled.

    c. A few strange cases similar to this started working after computer A's system was reinstalled. Just the opposite of what happened here, but maybe if it is not too much effort you want to try the install again.

    d. A few strange cases similar to this started working after a router replacement.

    I know this isn't terribly helpful or encouraging, but it's the best I can do now.
     
  15. PatMG

    PatMG Thread Starter

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    I started with your suggestion (a).... no luck :(

    So tomorrow I'll work with the Norton solution. In the past, I saw odd thing with Norton and similars so, this is a strong possibility

    I will keep you informed about the results

    Thank you for all your help ... and your patience!! (y)
     
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