Lync 2013 – Audio Test Service Failed to start after SIP domain change

During a primary SIP domain name change the Audio Test Service Failed to start up with the Error:

EventID: 32003: Failed to start RTCATS Service The Application Host could not start the application urn:application:testbot

AudioTestServiceError

Opened Lync Management Shell and Ran the Command:

Get-CsAudioTestServiceApplication and it returned

Get-CsAudioTestServiceApplication

Where the SIP Address was showing the incorrect domain ie. Domain.local rather than the new Domain.com

To Fix this issue:

  • Copy the Identity for each AudioTestService and make note of the contents inside CN={}Get-CsAudioTestServiceApplication-SIPAddress
  • Open ADSIEDIT
  • Click Action -> Connect To
  • Ensure Select a well known Naming-context radio button is selected
    • From the drop down list select: Configuration
    • Click OKADSIEdit-ConnectTo
  • Expand Configuration (Domain)
    • Expand CN=Configuration,DC=Domain
      • Expand CN=Services
      • On the right hand side find the CN name that reviewed above, Righ Click and select Propertires

ADSIEdit-Expand

  • Scroll down to find msRTCSIP-PrimaryUserAddress and double click it
    • Modify the domain.local to the new SIP Domain.com and Click OKmsRTCSIP-PrimaryUserAddress
  • Scroll down to find ProxyAddresses and double click it
    • Click Remove
    • In the value to add window modify the domain.local to the new SIP Domain.com and Click Add proxyAddresses
  • Click OK twice
  • On each Front-End Server that the service is stopped , in the management shell run: Start-CSWindowService

The Service will now start and you are able to use the AudioTestService once again.

2 thoughts on “Lync 2013 – Audio Test Service Failed to start after SIP domain change

  1. Hello,

    Searching for days now. Cannot find this in Skype for Bussiness 2015
    Have exact this issue only my ADSIEDIT does not show the CN=RTC Service
    While the path in service shows up ok :S

    Identity : CN={63a43d9d-cc7d-4eaf-a2cc-72b2c3984974},CN=Applicati
    on Contacts,CN=RTC
    Service,CN=Microsoft,CN=System,DC=MobSat,DC=local
    RegistrarPool : POOLNAME
    HomeServer : CN=Lc Services,CN=Microsoft,CN=1:8,CN=Pools,CN=RTC
    Service,CN=Microsoft,CN=System,DC=MobSat,DC=local
    OwnerUrn : urn:application:testbot
    SipAddress : sip:RtcApplication-b945d707-1635-4317-99e7-1ccb8a93d21
    d@OMMITED
    DisplayName : Audio Test Service
    DisplayNumber :
    LineURI :
    PrimaryLanguage : 0
    SecondaryLanguages : {}
    EnterpriseVoiceEnabled : True
    ExUmEnabled : False
    Enabled : True

    1. Hi John, sorry for the late reply.

      Here is how you can find that location.

      Open ADSIEDIT – > Connect to -> Select Connection Point radio button -> Type the path to the folder: CN=Application Contacts,CN=RTCService,CN=Microsoft,CN=System,DC=MobSat,DC=local.

      Now Click OK, and you will be taken to the folder and you can now right click on the GUID and make the change.

      Habib

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