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  1. #1
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    Network and permissions (Windows XP)

    Very long list of test results (over 9,000 characters) moved to attachment by HansV. Many superfluous line ends removed.

    There are usually 2, frequently 3 and sometimes 4 or more pc's in my home network. All are WinXP, fully updated and protected by McAfee. On each pc there is at least one folder in the root directory (usually named Temp) which is shared across the network. Via Windows Explorer if I try to access the workgroup I get the message that access has been denied as I do not have the correct permissions, unable to find the network path.

    Sometimes the pc's can ping each other, sometimes not. I have checked that the Browser, Server and workstation services are started and running. Filesharing is enabled (in the properties of the network connection) and the permissions on several folders allow full access and control to all network users over these folders.

    Listed below are the results I have obtained, following a list contained in another post. Can nayone give me a clue as to where my problem might be?

    Thanks!
    Attached Files Attached Files

  2. #2
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    Re: Network and permissions (Windows XP)

    You say that the error is
    <hr>Via Windows Explorer if I try to access the workgroup I get the message that access has been denied as I do not have the correct permissions<hr>
    But your description of steps you tooksays that you didn't configure the usernames and passwords as suggested to see if this was a user authentication issue.

    Please create a test user account, with the same username and the same non-blank password, on both PCs. Log into this account on both PCs and see if you can then access shares. If this resolves the problem then we should be able to find a simple solution but we need to know if this works first.

    StuartR

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    Re: Network and permissions (Windows XP)

    Thanks Stuart for your reply. I created the user Test, pwd test on both pc's, used the net command to clear out any possible residue and then rebooted both pc's. By coincidence I was sitting at the second pc when they were both ready, and from there I could see the first pc. I then walked over to the first pc, and via Windows Explorer I could see the second pc. I then rebooted both, as I no longer trust one-time success. But this time, I happened to be at the first pc. And I could not see the second pc. So I walked over there to see what was visible, and in Windows Explorer I could see the first pc. When I returned to the first pc, I could now see the second one as well. I realize that DNS may take a few minutes to browse a network, but this looks like the first pc can only see others after it has first been seen. Does this make any sense?

    Maury

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    Re: Network and permissions (Windows XP)

    Network discovery and timing is always a mystery. There never seems to be a rhyme or reason. You ought to just be happy it worked. <img src=/S/grin.gif border=0 alt=grin width=15 height=15>

    Joe
    Joe

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    Re: Network and permissions (Windows XP)

    Remember that "permissions" are also used within the "Firewall" software. I know that if I do NOT give "permissions" to the different IP addresses using ZoneAlarm I get the same message.

    You might need to check out the different settings on EACH machine and see if the firewall within McAfee is blocking the access.

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

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    Re: Network and permissions (Windows XP)

    Thanks for the words of encouragement, guys, I checked out the McAfee settings very early on. Both firewalls allow the same ip-range. But just to make sure, I also turned off the firewall on both machines. This made no difference. since the second pc is not always turned on at the same time as the first, I need to be able to browse to it at any given moment. I have also considered the option of trying to make permanent mapping to the 2nd pc, but this is not really the solution to the problem.

  7. #7
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    Re: Network and permissions (Windows XP)

    I want to check that we have understood the situation correcly.

    Is the only remaining problem due to an inability to Browse to the shares in Windows Explorer?
    Browsing is a very arcane art for which the best diagnostic technique is to spread the entrails of a chicken and hope for inspiration.

    Could we solve your problem by creating a one line batch file which connects the remove drive when you double click it. The one line would just be of the form:
    <code>NET USE H: pcnamesharename</code>

    You need to replace the drive letter, pcname and sharename with the correct ones.

    If you have different usernames on the two PCs then you can use
    <code>NET USE H: pcnameusername /USER:username</code>
    which will prompt you for the correct password.

    You could even use
    <code>NET USE H: pcnameusername password /USER:username</code>
    with the password hard coded into the bat file, but I wouldn't recommend this.

    StuartR

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    Re: Network and permissions (Windows XP)

    You also need to check the IP address of every machine and make sure that they are ALL in the range listed in your firewall. Just turn OFF most third party firewall will NOT allow all computers to have access. They must be uninstalled most of the time. If you turn OFF the third party firewall the Windows firewall will kick in.

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

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    Re: Network and permissions (Windows XP)

    Happy New Year Stuart, and thanks for the advice. Believe me, if I can find a live chicken it is in BIG trouble.

    I have now been able to more clearly define the problem. It is as you described, using Windows Explorer I cannot browse the network. But by using the following cmd file I am now able to get a more concise picture of what is going wrong.
    ipconfig /flushdns
    net use * /delete
    NET USE sanneIPC$
    NET VIEW sanne
    NET VIEW maury
    net use x: "sannemijn documenten"

    One of the problems that I was having had to do with the file name "mijn documenten". Command line commands do not like spaces in the file names, and I had missed that. I was able to map to Temp, and that just confused the issue even more.

    But it seems totally illogical that I can map to a remote system, but I cannot browse to it. Are there any local security policies I need to look at? Odd that I can ping by name or ip and get a response, but not by browsing. And to make matters even more confusing, I have an older WinXP machine, and when I turn that one on and give it time to start up, I can browse the network! All ip's are in the same range.

    Any particular breed of chicken works best?

  10. #10
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    Re: Network and permissions (Windows XP)

    Here is an introductory article on the Browser service, just to get you started.

    Note the lines that say...
    <hr>Because the browser service relies on server broadcasts, its communication is connectionless and by definition unreliable. When a server starts, it immediately sends a host announcement frame. This process is repeated at 4 minutes and again at 8 minutes. The process is then repeated every 12 minutes thereafter.

    Allowing for the loss of a few datagram frames, it is reasonable to expect that the network segment's master browser will add a given computer's name to the browse list within 12 minutes after startup. Beyond this point, connection-oriented traffic is used and the sequences are more deterministic. Within 12 minutes, the segment's master browser will connect to the PDC to obtain the domain-wide list, and at the same time the PDC will connect to the master browser and learn of the new server. <hr>

    StuartR

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    Re: Network and permissions (Windows XP)

    Problem remains unresolved, but this thread may be considered closed.

  12. #12
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    Re: Network and permissions (Windows XP)

    Well, it took a VERY long time, but I believe I have found a solution, maybe even the solution. It involves a change to the register. However, it also raises some questions. Since my previous post I had a major hardware failure and had to replace the motherboard and CPU. This meant a repair job on Windows XP to get the HAL working correctly. But even after this, I still could not browse the network. In the meantime, I had also built a completely new Windows XP machine, and it showed identical behavior right from the start. I was now desperate and had nothing to lose by applying this register modification. As soon as I rebooted my system I was able to browse the network without any problem. I have applied the same patch to the repaired pc, and again the results are as desired.

    Now for the resulting questions.
    1. I cannot find any good information on the subject of "node type". So far, it appears that there are at least three types: unknown, peer-to-peer and dhcp. But what does this mean?

    2. I examined the register both prior to and after modification. Yet there are no new keys or values added, nor has anything been removed. Yet something must have changed as I can now browse my network. Why can I not see what has been changed?

    I hope that this information may be of some use to others. It was a very frustrating problem, but it has now been resolved. So please share this information where it may help others.

    Maury
    Attached Files Attached Files

  13. #13
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    Re: Network and permissions (Windows XP)

    Thank you for sharing. You will find explanations of these parameters here.

    I wonder how on earth these got set to the wrong values? I have never come across this before.

    StuartR

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    Re: Network and permissions (Windows XP)

    How they got to the wrong setting is a complete mystery to me. Particularly since the second pc was a complete clean installation from an original cd. Immediately after the initial install I applied ALL of the MS upgrades, and that was it. Hope this might be of use to others.

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    Re: Network and permissions (Windows XP)

    (Edited by HansV to make URL clickable - see <!help=19>Help 19<!/help>)

    Much to my surprise, after working properly for a day or so, this problem reappeared. I was sorely tempted to just completely give up on computers (after almost 40 years working with the things and having seen everything from tubes and paper tape to microprocessors) and take up butterflies as a hobby. But I cannot let go of a problem. Further digging and I came across an old forgotten friend, BROWSTAT.EXE. And sure enough, this lead me to the next solution. The master browser on my network was not one of the machines I expected, but the pc of my son! At night we turn off (almost) all of the machines, but his stayed on. and the next morning, he was master browser. And his machine has not yet been taken care of. Here is a good link to share with others:

    http://nitecruzr.blogspot.com/2005/05/brow...-microsoft.html

    I hope there is some way to help spread this information to help others.

    Maury

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