Trio 8800 unable to sign in from one site

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Trio 8800 unable to sign in from one site

We have one Trio that wont sign in from one specifi MPLS site, same user from PC on same site works fine. Same Trio device, same user works fine from different site .


Its probably certificate related due to this in the log
    PID: 1331
    Log: 0823161342|sip  |4|00|[cert_verify_callback,tcp]:Server certificate verification failed, Untrusted Certificate,error=20


But DHCP cert provisioning is working fine and (dhcputil verification turns out ok at least) IS there some way to manually do the provisioning ?

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Polycom Employee & Community Manager

Re: Trio 8800 unable to sign in from one site

Hello spinnetho,

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 <=

The above should allow you to lower the logging and maybe get more details.


The next step is to open a ticket with support.

In order to raise a support ticket you need to work with your Polycom reseller as they need to do this for you. End Customers are usually unable to open a ticket directly with Polycom support..

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


If official support is required please check how to phone or open a case here

The title Poly 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
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