File sharing anomaly

  • Thread starter Thread starter Tosca
  • Start date Start date
T

Tosca

Hi everyone

I have two laptops, each with XP Pro SP1 and managed to set up wireless file
sharing over the weekend. There's one shared folder on each laptop and
everything works fine.

When I turned one laptop on this morning, I saw that both shared folders
were listed in My Network Places. When I clicked on that related to the
other laptop, it gave an error as it's clearly not available for sharing at
present. I was surprised that both folders were listed. Is it possible to
set it up so that only the folders that are *actually* available for sharing
are listed? I'd far rather this than be faced with potentially several
options (when I've set all shared folders that I'll need) which, when
clicked, may generate an error.

I hope that I've explained things sufficiently and am grateful for your time
and patience.
 
Hi everyone

I have two laptops, each with XP Pro SP1 and managed to set up wireless file
sharing over the weekend. There's one shared folder on each laptop and
everything works fine.

When I turned one laptop on this morning, I saw that both shared folders
were listed in My Network Places. When I clicked on that related to the
other laptop, it gave an error as it's clearly not available for sharing at
present. I was surprised that both folders were listed. Is it possible to
set it up so that only the folders that are *actually* available for sharing
are listed? I'd far rather this than be faced with potentially several
options (when I've set all shared folders that I'll need) which, when
clicked, may generate an error.

I hope that I've explained things sufficiently and am grateful for your time
and patience.

Tosca,

Make sure the browser service is running on one computer only. Control Panel -
Administrative Tools - Services. Verify that the Computer Browser, and the
TCP/IP NetBIOS Helper, services both show with Status = Started. Stop then
Disable the browser service on the other computer.

After checking / disabling / enabling as above, power all computers off to reset
the browser settings on each. Then power both computers on.

The Microsoft Browstat program will show us what browsers (I'm not talking about
Internet Explorer here) you have in your domain / workgroup, at any time.
http://support.microsoft.com/?id=188305

You can download Browstat from either:
<http://www.dynawell.com/reskit/microsoft/win2000/browstat.zip>
<http://rescomp.stanford.edu/staff/manual/rcc/tools/browstat.zip>

Browstat is very small (40K), and needs no install. Just unzip the downloaded
file, copy browstat.exe to any folder in the Path, and run it from a command
window, by "browstat status". Make sure all computers give the same result.

For more information about the browser subsystem (very intricate), see:
http://support.microsoft.com/?id=188001
http://support.microsoft.com/?id=188305
<http://www.microsoft.com/technet/prodtechnol/winntas/deploy/prodspecs/ntbrowse.mspx>

Do any of the computers have a software firewall (ICF / WF, or third party)? If
so, you need to configure them for file sharing. Firewall configurations are a
very common cause of (network) browser, and file sharing, problems.
 
Brilliant - thank you Chuck. I'll check this out.

As a matter of interest (I don't know if it's relevant) but I used the
default NetBIOS over TCP/IP setting (as opposed to Enable or Disable) for
all of the connections. I have ZoneAlarm on one of the laptops
(192.168.0.3) which blocked some activity from the other (192.168.0.2) so I
set it to allow activity in the IP Address range 192.168.0.1 - 192.168.0.10.
I have a combined Router/Modem connected to a BT ADSL line. The Router
Firewall is set to block everything. I don't use the XP Firewalls

Thanks again for your time.
 
Brilliant - thank you Chuck. I'll check this out.

As a matter of interest (I don't know if it's relevant) but I used the
default NetBIOS over TCP/IP setting (as opposed to Enable or Disable) for
all of the connections. I have ZoneAlarm on one of the laptops
(192.168.0.3) which blocked some activity from the other (192.168.0.2) so I
set it to allow activity in the IP Address range 192.168.0.1 - 192.168.0.10.
I have a combined Router/Modem connected to a BT ADSL line. The Router
Firewall is set to block everything. I don't use the XP Firewalls

Thanks again for your time.

HTH, Tosca.

If ZoneAlarm is involved, you may need to un install it, following ZL
procedures. If you're behind a NAT router, you should be safe.
<http://nh2.nohold.net/noHoldCust25/Prod_1/Articles55646/CompleteUninstallNonNT.html>
 
Hi Chuck

Sorry about this - the anomaly persists! I disabled ZoneAlarm.

I set up a shared folder on each laptop and it showed successfully on each
laptop, along with the built-in SharedDocs on the laptop.

I deleted one of the shared folders that I had set up.

I stopped then disabled the Computer Browser on one laptop and rebooted
both. I checked Start>My Network Places on each laptop and the shared
folder that I had deleted was still listed! Obviously, it generated an
error when I tried to access it on either laptop.

However, if I go to Start>My Network Places>View workgroup computers then
click the computer from which the folder has been deleted, it's gone! This
works on either laptop.

Why doesn't it disappear from My Network Places?

I've tried this so many times - I've even tried disabling both the Computer
Browser and the TCP/IP NetBIOS Helper on the same laptop before rebooting
both. I don't know if it's relevant but the shared folder that I deleted
was on the laptop that had the Computer Browser (+/- TCP/IP NetBIOS Helper)
running.

Finally, I downloaded and ran Browstat. It generated an error on one
laptop:

"Status for domain MSHOME on transport \Device\NetBT_Tcpip_{XXXXXXXXdetails
deleted by me - same as belowXXXXXXXX}
Browsing is active on domain.
Master browser name is: ONE
Could not open key in registry, error = 5 Unable to determine build
of browser master: 5
\\\\ONE . Version:05.01 Flags: 51203 NT POTENTIAL MASTER
1 backup servers retrieved from master ONE
\\ONE
There are 2 servers in domain MSHOME on transport
\Device\NetBT_Tcpip_{XXXXXXXXdetails deleted by me - same as above and
belowXXXXXXXX}
There are 1 domains in domain MSHOME on transport
\Device\NetBT_Tcpip_{XXXXXXXXdetails deleted by me - same as aboveXXXXXXXX}"

and on the other:

"Status for domain MSHOME on transport \Device\NetBT_Tcpip_{XXXXXXXXdeleted
by me but different from the other laptopXXXXXXXX}
Browsing is active on domain.
Master browser name is: ONE
Master browser is running build 2600
1 backup servers retrieved from master ONE
\\ONE
There are 2 servers in domain MSHOME on transport
\Device\NetBT_Tcpip_{XXXXXXXXdeleted by meXXXXXXXX}
There are 1 domains in domain MSHOME on transport
\Device\NetBT_Tcpip_{XXXXXXXXdeleted by meXXXXXXXX}"

These messages don't mean anything to me but the error message concerns me!

Why, oh why, the inconsistency?
 
Hi Chuck

Sorry about this - the anomaly persists! I disabled ZoneAlarm.

I set up a shared folder on each laptop and it showed successfully on each
laptop, along with the built-in SharedDocs on the laptop.

I deleted one of the shared folders that I had set up.

I stopped then disabled the Computer Browser on one laptop and rebooted
both. I checked Start>My Network Places on each laptop and the shared
folder that I had deleted was still listed! Obviously, it generated an
error when I tried to access it on either laptop.

However, if I go to Start>My Network Places>View workgroup computers then
click the computer from which the folder has been deleted, it's gone! This
works on either laptop.

Why doesn't it disappear from My Network Places?

I've tried this so many times - I've even tried disabling both the Computer
Browser and the TCP/IP NetBIOS Helper on the same laptop before rebooting
both. I don't know if it's relevant but the shared folder that I deleted
was on the laptop that had the Computer Browser (+/- TCP/IP NetBIOS Helper)
running.

Finally, I downloaded and ran Browstat. It generated an error on one
laptop:

"Status for domain MSHOME on transport \Device\NetBT_Tcpip_{XXXXXXXXdetails
deleted by me - same as belowXXXXXXXX}
Browsing is active on domain.
Master browser name is: ONE
Could not open key in registry, error = 5 Unable to determine build
of browser master: 5
\\\\ONE . Version:05.01 Flags: 51203 NT POTENTIAL MASTER
1 backup servers retrieved from master ONE
\\ONE
There are 2 servers in domain MSHOME on transport
\Device\NetBT_Tcpip_{XXXXXXXXdetails deleted by me - same as above and
belowXXXXXXXX}
There are 1 domains in domain MSHOME on transport
\Device\NetBT_Tcpip_{XXXXXXXXdetails deleted by me - same as aboveXXXXXXXX}"

and on the other:

"Status for domain MSHOME on transport \Device\NetBT_Tcpip_{XXXXXXXXdeleted
by me but different from the other laptopXXXXXXXX}
Browsing is active on domain.
Master browser name is: ONE
Master browser is running build 2600
1 backup servers retrieved from master ONE
\\ONE
There are 2 servers in domain MSHOME on transport
\Device\NetBT_Tcpip_{XXXXXXXXdeleted by meXXXXXXXX}
There are 1 domains in domain MSHOME on transport
\Device\NetBT_Tcpip_{XXXXXXXXdeleted by meXXXXXXXX}"

These messages don't mean anything to me but the error message concerns me!

Why, oh why, the inconsistency?

Tosca,

The "error = 5" is an access denied. You have to have administrative authority
to access the registry on One, apparently the account you're using does not have
it.

On any XP Pro computer, check to see if Simple File Sharing (Control Panel -
Folder Options - View - Advanced settings) is enabled or disabled. You need SFS
disabled, if you're going to use browstat without errors.

On XP Pro with SFS disabled, check the Local Security Policies (Control Panel -
Administrative Tools). Under Local Policies - Security Options, look at
"Network access: Sharing and security model", and ensure it's set to "Classic -
local users authenticate as themselves".

Finally, setup and use a common non-Guest account on both computers, with an
identical, non-blank password.

Remember, the browser does not react instantaneously to changes on the LAN. As
indicated in the long reference article, you may see latency of up to 52 minutes
between a change being made, and reflected in the browser. That's why all my
instructions include powering everything off after making changes.
 
Hi Chuck (again!)

Thanks for the further advice. Yes, I see that there is latency between
changes being made and being reflected in what I see on each computer. I
also read something about a recognised problem in refreshing My Network
Places. I've made the changes suggested on this laptop so I'll reboot and
turn the other one on too. Not so easy after all, this Shared Folder trick,
is it? Here's hoping!
 

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