Windows 2003 clients lose connections to files.

We have a Windows 2k3 domain with Winodws 9x and XP client. We have 2 programs that simply run by double clicking a shortcut to an exe on the network, the programs are not locally installed (this is the correct way to use these programs).

Since going to Windows 2k3 from Windows NT, we have had nothing but problems. The programs both lock up on users machines randomly. A reboot on the client machine fixes it, but then I'll get another call that someone else has a problem and then later on that client will hav e it lock up again.

What could be causing this? Is there some sort of default setting on 2k3 that could be causing this?

ScottCLAsked:
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georgecooldudeCommented:
Probably power savinig on the NIC cards.

Go to control panel, and It is either in the propertys of the LAN connections under the advanced of power management. I cannot remember the exact location now but I think it might be somewhere near there
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abu_deepCommented:
Are the clients part of the domain or just working as a workgroup? Have you checked the time differences between the Win 2003 domain controller and the clients? I might guess Kerberos v5 authentication is failing or the authentication ticket is expiring and Win2k domain controller is not renewing the token so that access to share have been disrrupted. Kerberos uses local time as a variable to create authentication tokens. I think the time difference between the authenticating server and clients needs to be within 5 minutes.


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adamdrayerCommented:
Can you check the event logs on the Server?  how did you upgrade?
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ScottCLAuthor Commented:
>>>Are the clients part of the domain or just working as a workgroup?<<<

They are all part of the domain.

>>>Have you checked the time differences between the Win 2003 domain controller and the clients? I might guess Kerberos v5 authentication is failing or the authentication ticket is expiring and Win2k domain controller is not renewing the token so that access to share have been disrrupted.<<<

No I haven't. It seems that the only clients with this problem are the Win9x ones. I am sure it is within 5 minutes though. I will double check tomorrow.

>>>Can you check the event logs on the Server?<<<

I checked them and all is clear.

>>>how did you upgrade?<<<

We migrated everything over to the new DC, no in place upgrades.

Please keep checking this thread, your help is appreciated.
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adamdrayerCommented:
a few other things to try:

-make sure all computers are patched all the way
-make sure you have installed Internet Explorer 6 Service Pack 1
-make sure you are running WINS on the Domain Controller and the clients have it as the WINS server

Is the hostname of the domain controller longer than 8 characters?
Does it lock completely so that the Caps Lock button no longer toggle the LED on the keyboard?
Can you Ctrl-Alt-Del, and check the task manager?
You have the Active Directory Client Extensions for Windows 98 installed right?  I assume so, because I don't think you'd be able to log in otherwise.
 
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ScottCLAuthor Commented:
>>>-make sure all computers are patched all the way
-make sure you have installed Internet Explorer 6 Service Pack 1
-make sure you are running WINS on the Domain Controller and the clients have it as the WINS server<<<

Check on all of those.

>>>Is the hostname of the domain controller longer than 8 characters?<<<

No

>>>Does it lock completely so that the Caps Lock button no longer toggle the LED on the keyboard?<<<

No. Only the program running.

>>>Can you Ctrl-Alt-Del, and check the task manager?<<<

Yes.

>>>You have the Active Directory Client Extensions for Windows 98 installed right?  I assume so, because I don't think you'd be able to log in otherwise.<<<

Yes.
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ScottCLAuthor Commented:
I found the answer. It was Opportunistic Locking causing the headache.

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georgecooldudeCommented:
Fine by me :-)
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moduloCommented:
PAQed with points refunded (500)

modulo
Community Support Moderator
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