Em311E event (error level) occurred

[nikko207]

Hello,

I have a N4100PRO that is being used as our main file server for our small business thats based on a Microsoft client/server environment.

Background:
We have two domain controllers. One running MS 2008 Standard x64 as the GC and the other is MS 2003 R2 Standard x86. The N4100PRO has successfully joined the domain. I can see it in AD Users & Computers and have not noticed any issues via event viewer except for MRxSmb Event ID 8003 which is an entirely different issue (post).

Domain users/workstations connect to the N4100PRO without any problems and are able to access files based on AD permissions.

Problem:
The N4100PRO is configured to email me if there are any problems. Within the last 48 hours I've been receiving emails with the subject: Em311E event (error level) occurred

The content of the email message is as follows:
Hello [e-mail]

This notification message is generated automatically from N4100PRO (192.168.10.9).
The system experienced the following event(s).

The ADS server dc01.domain.com connection was lost.

Please be aware of the event(s) above. Also if necessary, please react to the
event(s).

==============================================
The automated message is generated at 2009-11-24 22:30:37 by N4100PRO (raid1) (192.168.10.9).


If anyone else has experienced this problem, knows of a solution or any more information that would help, please advice.

Thank you for your time

[adamok]

I have four N8800SAS in an active directory 2003 domain, every 30 minutes I get a load of
"Em311E event (error level) occurred" Unable to get AD server response while request for time checking, will check again in 30 minutes period

Has anyone found a solution?

Many thanks

Adam