DjJohnny
asked on
Users Loosing Network Resources
Hi Experts,
This has become a real problem for a customer of mine. They are ready to cancel there service contract if I do not get is resolved. I have a SBS 2003 acting as a Domain Controller. There are 12 workstations all with XP Pro. Most of the time every thing is working well. What happens is the they will lose connection to the server. If they are working on a word document from a network folder the program will lock. They also use AutoCAD and if it happens when they are in a drawing it will lock up. This will not happen at the same time for each workstation. 1 can be locked up and the other is working fine. They say that it seems to happen at the end of the day between 4-5 pm. They have mouse movement and can open programs on the workstation. I checked the event viewer on the XP workstation and see:
ID 40960
The Security System detected an attempted downgrade attack for server cifs/Server. The failure code from authentication protocol Kerberos was "There are currently no logon servers available to service the logon request.
(0xc000005e)".
ID 40961
The Security System could not establish a secured connection with the server cifs/Server. No authentication protocol was available.
ID 5719
No Domain Controller is available for domain HARTCORN due to the following:
There are currently no logon servers available to service the logon request. .
Make sure that the computer is connected to the network and try again. If the problem persists, please contact your domain administrator.
I have checked
1. Power settings on the network cards
2. Log in times
3. Auto disconnect on the server
Thanks for the help
John
This has become a real problem for a customer of mine. They are ready to cancel there service contract if I do not get is resolved. I have a SBS 2003 acting as a Domain Controller. There are 12 workstations all with XP Pro. Most of the time every thing is working well. What happens is the they will lose connection to the server. If they are working on a word document from a network folder the program will lock. They also use AutoCAD and if it happens when they are in a drawing it will lock up. This will not happen at the same time for each workstation. 1 can be locked up and the other is working fine. They say that it seems to happen at the end of the day between 4-5 pm. They have mouse movement and can open programs on the workstation. I checked the event viewer on the XP workstation and see:
ID 40960
The Security System detected an attempted downgrade attack for server cifs/Server. The failure code from authentication protocol Kerberos was "There are currently no logon servers available to service the logon request.
(0xc000005e)".
ID 40961
The Security System could not establish a secured connection with the server cifs/Server. No authentication protocol was available.
ID 5719
No Domain Controller is available for domain HARTCORN due to the following:
There are currently no logon servers available to service the logon request. .
Make sure that the computer is connected to the network and try again. If the problem persists, please contact your domain administrator.
I have checked
1. Power settings on the network cards
2. Log in times
3. Auto disconnect on the server
Thanks for the help
John
Please post a complete IPCONFIG /ALL from your server and a sample workstation in order to help you diagnose the problem.
Jeff
TechSoEasy
Jeff
TechSoEasy
ASKER
I will post the SBS questions here ,Thanks.
I made the changes to the DNS on the server,pointing it to it self and changed the work stations to the server for DNS. It has been 2 days and no problems. I will see wat happens in the next week or so and post back
John
I made the changes to the DNS on the server,pointing it to it self and changed the work stations to the server for DNS. It has been 2 days and no problems. I will see wat happens in the next week or so and post back
John
You should have your workstations using DHCP and DHCP should be provided by your SBS, just FYI.
Jeff
TechSoEasy
Jeff
TechSoEasy
ASKER CERTIFIED SOLUTION
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Now, out of pure curiosity: if my suggestion to check and correct your DNS settings seems to have resolved the issue, why did you accept a comment just asking you to run "ipconfig /all" as answer?
ASKER
Sorry Clicked the wrong one
Check if this applies:
Information about configuring Windows for domains with single-label DNS names
http://support.microsoft.com/?kbid=300684
And check if your DNS configuration matches these articles (in short: use *only* the SBS as DNS, configure forwarders to point to your ISP's DNS, allow dynamic updates).
10 DNS Errors That Will Kill Your Network
http://mcpmag.com/features/article.asp?EditorialsID=413
Frequently Asked Questions About Windows 2000 DNS and Windows Server 2003 DNS
http://support.microsoft.com/?kbid=291382
Best practices for DNS client settings in Windows 2000 Server and in Windows Server 2003
http://support.microsoft.com/?kbid=825036
Finally, you can install the Support Tools and run netdiag.exe and dcdiag.exe
Windows Server 2003 Service Pack 1 32-bit Support Tools
http://www.microsoft.com/downloads/details.aspx?FamilyID=6ec50b78-8be1-4e81-b3be-4e7ac4f0912d&displaylang=en)