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Three computers in a workgroup A, B, C. A networks with B & C but B & C don't network with each other!

Posted on 2004-03-31
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Last Modified: 2012-08-13
Two are wireless and one is plugged into wireless router which is plugged into a cable modem. All three have an internet connection that works. All three have printer and file sharing enabled. A=Sony Vaio wireless; B=Dell Latitude Wireless; C= Dell Dimension plugged in.
The Sony and the other two share file in both directions. The two Dells don't communicate at all. How can this be?
The Vaio and the Dimension have XP Pro the Latitude has XP Home.
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Question by:SnoMoVT
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sirbounty earned 2000 total points
ID: 10729074
Disable all firewalls for testing.  This includes Zone Alarm, Norton Internet Security, etc.
    Including XP's ICF...
    From Control Panel, open Network Connections.
    Right-click Local Area Network from Control Panel's Network Connections and choose Properties
    Click the Advanced tab and deselect (remove the checkbox from) "Protect my computer..."
    Click OK and close out of Network Connections & Control Panel

Enable NetBIOS over TCP/IP:
    XP utilizes DNS for communication by default.  To enable the systems to communicate via NetBIOS,
    proceed as above to enter Network Connections.
    Right-click your Local Area Connection and click Properties
    Scroll down in "This connection uses the following items:" to find Internet Protocol (TCP/IP)
    Select it (highlight it) and click properties
    Click the Advanced button on the General tab.
    Click the WINS tab.
    Under NetBIOS setting heading
     Click Enable NetBIOS over TCP/IP
    Click OK, OK, OK and close out of Network Connections & Control Panel

Disable Simple File Sharing: (XP Pro only)
    Right-click the Start button and click Explore
    Click Tools then Click Folder Options
    Click the View tab
    At the bottom of the Advanced Settings list, deselect (remove the checkbox from):
     "Use simple file sharing (Recommended)"
    Click OK

Let Everyone's permissions apply to anonymous users as well:
     Click Start
     Click Run
     In the Open box type SECPOL.MSC /S <ENTER>
     Navigate to Local Policies/Security Options.
     Double click "Network Access:Let Everyone permissions apply to anonymous users"
     Click Enabled and click OK

Test your connectivity:
    Click Start
    Click Run
    In the Open box that appears, type CMD <ENTER>
    At the prompt that appears, type IPCONFIG <ENTER>
    Do you have an IP address listed (192.168.1.100)?
    If so, try pinging the other machines by IP address:
      PING 192.168.1.100
    If you get a Reply successful, then try connecting to them...
      NET USE * \\192.168.1.1001\C$ /USER:192.168.1.100\Administrator Password
    (where Administrator is an administrative account on the machine you're trying to get to)
    (and where Password is the appropriate password for that account).


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LVL 67

Expert Comment

by:sirbounty
ID: 10729078
It also helps to have the same user name and password across all machines...
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Author Comment

by:SnoMoVT
ID: 10729151
Thanks I'll try this tomorror at my clients office and let you know!
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LVL 67

Expert Comment

by:sirbounty
ID: 11139104
The above has worked many times.  No doubt it won't resolve this problem - but would rather SnoMoVT comes back so that I can be sure the problem is completely resolved...
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