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  1. #1
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    Computer does not see network anymore

    I got four computers in a network using a router. All computers run Windows XP pro. This has been working without any problems for about a year.
    Now one of the computers can not see the network anymore.
    From that computer I can ping the other computers, from the other computers I can not ping the computer with the problem.

    I switched network cables between two computers. The problem still exists on the same computer.

    I ran the network wizard (configurationwindow, networks). No difference.

    Workgroup is OK, computername is OK, there are several folders shared on the computer.

    All computers have TCP/IP as network protocol (no NETBUI).

    Who has the golden tip to solve this problem?

  2. #2
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    Re: Computer does not see network anymore

    Have you tried switching ports on the router? Did you update anything on the affected PC?

    Joe
    Joe

  3. #3
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    Re: Computer does not see network anymore

    Any changes to your firewall on any of the machines?

    Now running HP Pavilion a6528p, with Win7 64 Bit OS.

  4. #4
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    Re: Computer does not see network anymore

    Switching off firewall and virus scanner is no solution to the problem, after killing them the problem still exists.
    Different router port and new network cable also do not have any effect.

  5. #5
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    Re: Computer does not see network anymore

    Just turning OFF the firewalls will NOT do it, as the MS firewall will kick in.

    Make sure that the IP address of each machine is included in the safe list of EACH machine's firewall.

    What firewall softwall are you using a each machine?

    Now running HP Pavilion a6528p, with Win7 64 Bit OS.

  6. #6
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    Re: Computer does not see network anymore

    I replaced the network card, no effect.
    I removed all firewalls on all computers, switched off the Windows firewall on all computers, switched off the virusscanner on all computers (unplugged the modem for safety reasons during this test), no effect.

    Next step is moving the computer to another network (I will do that tonight) en see what happens.

    Any tips are still welcom.

  7. #7
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    Re: Computer does not see network anymore

    Do you remember changing the affected PC immediatelt prior to the problem appearing?

    Joe
    Joe

  8. #8
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    Re: Computer does not see network anymore

    No hardware or software changes made prior to the problem.

    I connected the computer to a completely different network. The problem also exists there.
    Ik can ping from the computer with the network problem other computers but I can not ping the computer with the problem

    From the computer with the problem I can ping 127.0.0.1 and 212.79.247.24.
    I can also ping the router from that computer. I can not load the setup page from the router.

  9. #9
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    Re: Computer does not see network anymore

    I just found out that this computer also cannot ping its own IP address.

  10. #10
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    Problem solved

    I downloaded and executed WinsockxpFix.exe.
    This solved the problem.

    Thanks for all the replies.

  11. #11
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    Re: Problem solved

    I'm glad to see you got it working, thanks for sharing the solution.

    StuartR

  12. #12
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    Re: Problem solved

    I have a very similar problem, so I am very interested that in the fact "WinsockxpFix.exe" may be the solution.

    In my case 5 PCs (all XP Home) & 1 laptop (XP pro) on a peer-peer network. The PCs are linked to each other via 2 hubs. One of those is linked to a router & then onto the internet (via a cable modem). Normally router sets IP addresses.

    All worked fine till I was in Tokyo 2-4 weeks ago. There I connected my laptop: 1. to my hotel broadband internet (100Mbs via RJ45, purely browser interface, no setup whatever - worked perfectly); & 2. to a corporate (server) network (internet access only - worked, except I could not send oullook email via my NZ account). I suspect the latter may have affected my network settings though? (I had been on the same hotel internet system 6 months earlier with no ill effects).

    When I got back home (NZ), I could no longer access other computers on our network from the laptop & vice versa. All other PCs on the network can still see each other as per normal. Also, I still have full access to the internet from my laptop (& other computers).

    After several days of fluffing around, discussing with other people (& several more just ignoring the problem), I eventually bit the bullet & paid MS their fee (NZ$35) for technical support. Fairly nominal (esp this case!!), but after over 3 hours on the line to with a technician, the problem remains unsolved. Tried everything short of a reinstall (or rather, "new folder install" which they say is the only option left). That I would dearly love to avoid, for the present at least. Did reset Winsock though; removed the router; ran HijackThis; manually set IP addresses; ....; and lastly did a repair install of Windows. Still no chop.

    I did discover 1 interesting point though with the aid of MS tech support: I can fully access the network directly via IP addresses. It is only access via computer name & Windows Explorer that does not work. eg; typing 192.168.1.100 into "Run" correctly brings up a Windows explorer with all shared folders on my "Office" PC. "Runing" Office fails. Similarly can successfully ping "192.168.1.100 " but not "Office". Same applies in reverse (ie. other PCs can access the laptop via its IP address - whether auto set, manually set, or set by the router).

    Does the above give any clue as to the cause of the problem? (DNS?? or Winsock)?

    In the meantime I am going to give "WinsockxpFix.exe" a go - must be less painful than a "new folder install"?

    If that fails I will work via IP addresses for now. Fortunately, I found this morning that Win Explorer "My Network Places" has retained the IP address links to my "Office" desktop, making it fairly easy to connect via IP addresses.

    Any alternate suggestions?

    David

  13. #13
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    Re: Problem solved

    <img src=/S/sad.gif border=0 alt=sad width=15 height=15> Alas, WinsockxpFix.exe made no difference to the problem. Still only able to connect via IP addresses.

    David

  14. #14
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    Re: Problem solved

    Hi,
    Have you checked whether NetBIOS is enabled over your TCP/IP connection? Go to Control Panel - Network connections, right-click the LAN connection and choose Properties, select Internet Protocol, Properties, then Advanced. On the WINS tab, make sure Enable NetBIOS over TCP/IP is checked. Then OK out of everything and see if that helps.
    Regards,
    Rory

    Microsoft MVP - Excel

  15. #15
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    Re: Problem solved

    Tried that to no avail, but thanks for the suggestion. Also tried with & without "Enable LMHOSTS lookup" to no avail (perhaps not surprising, since LMHOSTS is empty. Using HOSTS - not that I know what the difference actually is).

    What I have done for now is add the names & IP addresses of a couple of the networked PCs to my Hosts file. That allows me to ping by computer name; enter the PC name in a Win Explorer address field; & most importantly, means that printer drivers on the laptop now work (the 2 PCs I put in the Hosts file are my work & backup PCs & have printers on them) .

    Net View Name1 now works
    Net View Name2 does not work ("System error 53 has occurred")

    where Name1 is one of the PCs in the Hosts file & Name2 one of the other PCs

    Still cannot drill down to a networked PC from "My Network Places" in Win Explorer though; ie. get error message ( "... The list of servers for this workgroup is not currently available") when eventually click on "Workgroup". Of course access by Hosts file names:IP association will fail if IP addresses assigned by our router change; use the laptop on a different network; ... ; or etc.

    David

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