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Polycom SoundStructure VoIP Interface - register with Lync 2013

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Polycom SoundStructure VoIP Interface - register with Lync 2013



We are trying to register our Polycom SoundStructure VoIP Interface module with our on prem Lync 2013 environment.


The UC software version is running


The device has been configured as per


However trying to sign in via the Polycom web admin fails and looking in the Lync server SIP traces I see:

 Failed to validate user credentials - Result-Code: 0x8009030c SEC_E_LOGON_DENIED


I am successfully able to sign in to a SfB desktop client using the username and password details and these same details are being used in the SoundStructure cfg.


Any ideas?




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Polycom Employee & Community Manager

Re: Polycom SoundStructure VoIP Interface - register with Lync 2013

Hello Graeme,

welcome to the Polycom Community.

The community's Skype for Business FAQ contains this post here:

Jan 17, 2017 Question:How can I troubleshoot simple Skype for Business, LYNC or Office365 issues?

Resolution: Have a look => here <=

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. All posts and words are my own & do not represent the views of Employer.


Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 2 of 2