Sounds like offline files issue across the board. We are actually working on a similar problem for some of our laptop users right now, and symptoms are almost identical--
1) Implement a GPO that disables offline file caching for all domain machines that do NOT absolutely need it. For us, this covers our typical wired desktop machines. \Computer Configuration\Administrative Templates\Network\Offline Files, set the "Allow or Disallow use of the Offline Files feature" to disabled. 2) For machines that must have offline files enabled (like laptops), read through http://support.microsoft.com/kb/811660/en-us. Some of this can be set via GPO, but if you have a large number of computers, you will probably need to be enter some on each machine via regedit (eg, set the primary user). 3) Short-term fix on each machine can be achieved by following http://support.microsoft.com/kb/230738/en-us to re-initialize the offline files cache database, losing all offline files (make sure you are as sync-ed as possible first). But, unless you implement some measure from step 1/2, the problem WILL reappear when different users log onto the computers. -Bonnie From: Jeff Brown [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 30, 2008 7:25 AM To: NT System Admin Issues Subject: AD authentication drops Anyone else have this problem? W2k3 server environment, XP Pro desktops all part of single domain AD setup. Logon script maps access to shared folders for all employees. One mapped drive for shared workspace, one for private. Frequently something happens and the mapped drives "dissapear". If you try to attach by start;run and use the unc to the folder it will typically show one or none of the 12 or so folders that are there. logging off and back on almost always fixes it back. We have about 120 desktops in 4 different offices. This problem crops up almost daily and shows up in every location. We also run Exchange, so they are maintaining a connection there as well, and we have seen outlook drop authentication too, so that they are asked for a username/password midstream, which almost always results in a support call, because it needs the domain\ info before the username when it does that. The outlook authentication happens way less frequently than the problem with mapped drives. any ideas? Been fighting this for a while. Replaced storage vault with new hardward and had hoped that this problem would go away with that, but it had no affect. Thanks for any help. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
