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One Computer on my LAN cannot find other computers

I have a network with three computers (all running Windows 2000) connected to a Netgear FVS114 Firewall which is connected to a Linksys cable modem.

The cable modem connects to my ISP using DHCP. My Router connects to the cable modem using the dynamic IP provided by my ISP. All this is working fine.

My LAN is configured to run NAT. The three computers have IP's as follows:

Computer A: 192.168.0.2
Computer B: 192.168.0.3
Computer C: 192.168.0.4

All three have both "Client for Microsoft Networks" and "File and Print Sharing for Microsoft Networks" installed.

Computer B can both successfully ping Computers A and C and can retreive files from shared drives on those computers.
Computer A can successfully ping Computer C and retreive files from Computer C.
Computer C can successfully ping Computer A and retreive files from Computer A.

Both Computers A and B cannot ping Computer B, nor can I navigate to Computer B via the "My Network Places".

When doing so, from My Network Places, I select "Entire Network" to "Microsoft Windows Network" to "Workgroup". When I do so from all computers (A,B and C) all three computers show up. But from either Computer A or Computer C when I select Computer B, I get the message "\\ComputerB is not accessible. The network path was not found."

On all three computers Right-Clicking on "My Network Places" and from the "Advanced" menu going to "Network Identification" Show the Workgroup name as "WORKGROUP".

I have been trying to troublshoot this unsuccessfully for a while. Can anyone assist me.

Thank you,

Harry Wilker



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harrywilker
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harrywilker
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Keith AlabasterCommented:
The workgroup name is irrelevant at the moment. The basis for the network you have explained is tcpip and if the machines cannot ping each other, the rest is just blurb.

I assume all of these machines can use the internet OK? If so, the tcpip stacks are fine.
Do you have firewalls (XP SP2 etc)  and/or security suite-type packages (Norton, MacAfee) installed on any or all of these machines?
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harrywilkerAuthor Commented:
Thanks.

Your simple questions actually solved my problem. I don't use software firewalls, but as part of my McAfee Virus Scan which is running on all three computers, on the computer that couldn't be accessed there was an old long-expired component - Personal Firewall plus - that was still installed although I had never enabled it. I uninstalled that component and everything showed up.

I wish all problems were solved so easily and quickly.

Thanks again.

Harry
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Keith AlabasterCommented:
More than welcome Harry.

Regards
keith
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Keith AlabasterCommented:
Do you wish to accept my answer?
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harrywilkerAuthor Commented:
Sorry. I would have done so earlier but didn't know how to do it.

Thanks,

Harry
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Keith AlabasterCommented:
Thanks Harry. Have a good weekend.
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