This is most likely related to a DC Directory issue as you correctly noted. Here is some troubleshooting info;
This error message is received when you try to add/edit users through the Cisco CallManager Administration page:
Error: The following error occurred while trying to load the requested page.
Could not update user.
Error No: -2100
Error Description: Access Denied An Access denied message appears when the DC Directory does not run completely or is in a paused state. Restart the DC Directory in order to resolve the issue. Also, look into hard drive space problems, since low hard drive space can cause the DC Directory to go into a paused state.
When a user tries to delete a user in DC Directory, this error message is received:
Could not delete user. UserID = ""
This issue can occur if the DC Directory service has been stopped. In order to resolve the issue, restart the DC Directory Server service from Start > Programs > Administrative Tools > Services. You are then able to delete the user.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...