>I have a P2P network set up with WinXP Home, WinXP Media Center, and Win 98.
>The machine with WinXP MC has an external USB drive which I have shared to
>other machines on the network.  The issue is that I can share data between
>any of the machines' local hard drives, but when I try to access  the USB
>drive (even just get a directory listing) I get an error "[drive] is not
>accessible.  You might not have permission to use this network resource.
>Contact the administrator of this server to find out if you have access
>permissions.  Not Enough server storage is available to process this
>command".  When I access the machine's internal HDD, there is no error.
>
>A couple of notes that might help.
>1) This issue appeared shortly after the "server" machine was upgraded to
>Norton Internet Security 2006.  I have tried to see anything in Norton's
>firewall that may be causing the problem, but was unable to see any problem,
>as all machines in the workgroup are in the "trusted" zone.  It should also
>be noted that when Norton's was installed the drive was accessible for a
>while, then occasionally needed a reboot before it was accessible, and now
>is not accessible at all.
>2) temporarily turning the firewall off, does not solve the problem.
>3) The external drive appears to work fine when accessed from the "host"
>machine.
>4) all machines are up to date with windows updates
>5) the "host" machine can be connected to the workgroup either via Ethernet,
>or 802.11g.  The problem does not seem to be affected by switching network
>adapters
>6) on the "host" internal drive there is about 8Gb free space, on the
>External drive there is about 40G free space.

"Steve Winograd [MVP]" wrote:

> In article <#3fwGtdyGHA.3***@TK2MSFTNGP02.phx.gbl>, "Jon Hisey"
> <jonhi***@rogers.com> wrote:
> >I have a P2P network set up with WinXP Home, WinXP Media Center, and Win 98.
> >The machine with WinXP MC has an external USB drive which I have shared to
> >other machines on the network.  The issue is that I can share data between
> >any of the machines' local hard drives, but when I try to access  the USB
> >drive (even just get a directory listing) I get an error "[drive] is not
> >accessible.  You might not have permission to use this network resource.
> >Contact the administrator of this server to find out if you have access
> >permissions.  Not Enough server storage is available to process this
> >command".  When I access the machine's internal HDD, there is no error.
> >
> >A couple of notes that might help.
> >1) This issue appeared shortly after the "server" machine was upgraded to
> >Norton Internet Security 2006.  I have tried to see anything in Norton's
> >firewall that may be causing the problem, but was unable to see any problem,
> >as all machines in the workgroup are in the "trusted" zone.  It should also
> >be noted that when Norton's was installed the drive was accessible for a
> >while, then occasionally needed a reboot before it was accessible, and now
> >is not accessible at all.
> >2) temporarily turning the firewall off, does not solve the problem.
> >3) The external drive appears to work fine when accessed from the "host"
> >machine.
> >4) all machines are up to date with windows updates
> >5) the "host" machine can be connected to the workgroup either via Ethernet,
> >or 802.11g.  The problem does not seem to be affected by switching network
> >adapters
> >6) on the "host" internal drive there is about 8Gb free space, on the
> >External drive there is about 40G free space.
>
> That "Not Enough server storage" error message is misleading.  The
> problem is probably that Norton Internet Security has changed an
> obscure TCP/IP setting.  Please see this Microsoft Knowledge Base
> article for a likely solution, specifying a value of 15 for
> IRPStackSize on the WinXP MC:
>
> Antivirus Software May Cause Event ID 2011
> http://support.microsoft.com/?scid=kb;en-us;177078
> --
> Best Wishes,
> Steve Winograd, MS-MVP (Windows Networking)
>
> Please post any reply as a follow-up message in the news group
> for everyone to see.  I'm sorry, but I don't answer questions
> addressed directly to me in E-mail or news groups.
>
> Microsoft Most Valuable Professional Program
> http://mvp.support.microsoft.com
>