SIP Proxy: User authentication latency for NTLM Monitor

  • ID:  Microsoft.LS.2015.Monitoring.UnitMonitor.TimerResetEvent.Registrar.SIP_E_EVENT_AUTH_NTLMTIMEOUT
  • Description:  SIP Proxy: User authentication latency for NTLM
  • Target:  Registrar Component
  • Enabled:  Yes

Operational States

Name State Description
Success state for Monitor 'SIP Proxy: User authentication latency for NTLM' Success  
Error state for Monitor 'SIP Proxy: User authentication latency for NTLM' Error  

Alert Details

Monitor State Message Priority Severity Auto Resolution
Error state for Monitor 'SIP Proxy: User authentication latency for NTLM' (Error) [Skype] User authentication with NTLM protocol took longer than expected (more than 15 seconds). Medium Critical Yes

Run As Profiles

Name
Default

Monitor Knowledgebase

Summary

User authentication with NTLM protocol took longer than expected (more than 15 seconds).

Causes

This indicates a large delay on the network links between this server and its domain controller or between server's domain controller and domain controller for the user authentication domain.

Resolutions

Ensure acceptable delay on the network links between this server and its domain controller and between server's domain controller and domain controller(s) for the user authentication domain(s). The network link delay in seconds should be less than number of NetLogon secure channels (default is 2) divided by expected number of user logons per second (e.g. for a delay of 0.1 seconds, the logon rate cannot exceed 20 per second).%nIf network link delay cannot be decreased, try increasing MaxConcurrentApi setting for NetLogon on this server and/or on its domain controller (search for MaxConcurrentApi on Microsoft Support Web Site for more information about this problem).

External References
This monitor does not contain any external references.

See Also for Lync Server 2015 Monitoring Management Pack


Downloads for Lync Server 2015 Monitoring Management Pack

AZURE OPTIMIZATION ASSESSMENT GET STARTED
MIGRATION TO AZURE GET STARTED
SYSTEM CENTER MIGRATION TO AZURE GET STARTED
MIGRATION TO AZURE FOR SQL AND WINDOWS 2008 GET STARTED