New users were not able to access repositories and were thrown a 9520 error.  Restarting the License server did not help.  restarting the server did solve the problem.

however, prior to the restart the server has pages of event ID 63 warnings.  See sample below.  the warnings have not returned after the restart ... so far.

Sample of one of the warnings.  should I be concerned?

____________________________________________________________

Log Name:      Application
Source:        Microsoft-Windows-WMI
Date:          5/29/2014 6:48:23 AM
Event ID:      63
Task Category: None
Level:         Warning
Keywords:      Classic
User:          SYSTEM
Computer:      BCVM-DOCMGR-02.bci.buttecounty.net
Description:
A provider, InventoryProvider, has been registered in the Windows Management Instrumentation namespace root\ccm\InvAgt to use the LocalSystem account. This account is privileged and the provider may cause a security violation if it does not correctly impersonate user requests.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-WMI" Guid="{1edeee53-0afe-4609-b846-d8c0b2075b1f}" EventSourceName="WinMgmt" />
    <EventID Qualifiers="32768">63</EventID>
    <Version>0</Version>
    <Level>3</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-05-29T13:48:23.000000000Z" />
    <EventRecordID>113705</EventRecordID>
    <Correlation />
    <Execution ProcessID="0" ThreadID="0" />
    <Channel>Application</Channel>
    <Computer>BCVM-DOCMGR-02.bci.buttecounty.net</Computer>
    <Security UserID="S-1-5-18" />
  </System>
  <EventData>
    <Data>InventoryProvider</Data>
    <Data>root\ccm\InvAgt</Data>
  </EventData>
</Event>