OS 10.4 - SMB Shares drop off automatically

Hello,

I'm hoping someone can help me with this issue becuase I have scoured the internet and found people with the same issues, but no resolution. I am the systems admin for a design company which use 95% Apple desktops and 100% Windows Server back end. We have one file server which all users mount SMB shares from. The problem that some users are having is that for their SMB shares disappear with no error or warning. Here is some background information on the environment and the console and system log from one of the users.

The file server is Windows Server 2003 SP2 and DOES NOT have Apple File Sharing turned on, (I could turn this on but it would produce another learning curve for the users which I don't believe is needed at this time). I have checked the switch ports of both the server and the workstations that are having the problem and there are no errors or dropped packets. I even hard coded the NICs on the switches and workstations to be double sure there weren't any network issues and that didn't work either.

This is the relevant log info I found in the System log:

Feb 14 16:08:34 Users-Computer kernel[0]: smb_maperr32: no direct map for 32 bit server error (0xc0000054)
Feb 14 16:08:34 Users-Computer kernel[0]: smb_maperr32: no direct map for 32 bit server error (0xc0000054)
Feb 14 16:53:28 Users-Computer kernel[0]: smb_iod_sendrq: TRAN_SEND returned fatal error 57
Feb 14 16:53:28 Users-Computer KernelEventAgent[77]: tid 00000000 received VQ_DEAD event (32)
Feb 14 16:53:28 Users-Computer KernelEventAgent[77]: tid 00000000 type 'smbfs', mounted on '/Volumes/DOMAINNAME;FILESERVER-3', from '//DOMAINNAME;USERNAME@FILESERVER/XSERVE', dead
Feb 14 16:53:28 Users-Computer KernelEventAgent[77]: tid 00000000 found 1 filesystem(s) with problem(s)
Feb 14 17:00:39 Users-Computer /Users/mchaloux/Desktop/Transmit.app/Contents/MacOS/Transmit: __CGPixelAccessLockWindowAccess: access lock failed: error 1001.
Feb 14 17:02:25 Users-Computer kernel[0]: smbfs_smb_qfsattr: (fyi) share 'NTFS', attr 0x700ff, maxfilename 255
Feb 14 17:02:25 Users-Computer kernel[0]: smbfs_aclsflunksniff: (fyi) user sid S-1-5-21-3494402804-2380106949-1776822259-500 didnt map



And this is the relevant info I found in the Console Log:
Mac OS X Version 10.4.11 (Build 8S165)
2008-02-14 12:11:25 -0500
2008-02-14 12:11:32.210 SystemUIServer[325] lang is:en
mount_smbfs: error from NetrShareEnum call: exception = 382312522
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAME;FILESERVER' for /Network/DOMAINNAME/FILESERVER (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/FILESERVER returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAME;SQLMNA1' for /Network/DOMAINNAME/Sqlmna1 (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Sqlmna1 returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAME;MNAUM1' for /Network/DOMAINNAME/Mnaum1 (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Mnaum1 returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAME;MNACTPE6' for /Network/DOMAINNAME/Mnactpe6 (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Mnactpe6 returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAME;MNA-XSERVE' for /Network/DOMAINNAME/Mna-Xserve (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Mna-Xserve returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAME;IMAGERUNNER' for /Network/DOMAINNAME/Imagerunner (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Imagerunner returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAME;GPAGANO' for /Network/DOMAINNAME/Gpagano (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Gpagano returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAME;EXMNA1' for /Network/DOMAINNAME/Exmna1 (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Exmna1 returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAME;EDRISCOLL-NBK' for /Network/DOMAINNAME/Edriscoll-Nbk (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Edriscoll-Nbk returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAME;EDOX11357' for /Network/DOMAINNAME/Edox11357 (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Edox11357 returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAMECMNA2' for /Network/DOMAINNAME/Dcmna2 (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Dcmna2 returned 1 (Operation not permitted)
Feb 14 13:11:38 Users-Computer automount[206]: Cannot mount URL 'smb://DOMAINNAMECMNA1' for /Network/DOMAINNAME/Dcmna1 (UI not allowed).
Feb 14 13:11:38 Users-Computer automount[206]: Attempt to mount /Network/DOMAINNAME/Dcmna1 returned 1 (Operation not permitted)
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If anyone has any insight to this issue or any suggestions I am waiting and willing to try anything. Thanks!