?
Solved

Lync 2013 cert error only when sharing PPT

Posted on 2015-01-02
8
Medium Priority
?
1,170 Views
Last Modified: 2015-03-09
Hello,

We have an otherwise functioning Lync 2013  server/client installation, but sharing out PowerPoints has resulted in a error "There was a problem verifying the certificate from the server. Please contact your support team" (see attached too). I have researched this here http://goo.gl/inDh9L, which has not worked for me. I think I need to see the cert requirements for this operation, as everything else has been working for a while. Point me in the right direction?

Thanks!!
Sharing-Powerpoint.PNG
0
Comment
Question by:dgapinski
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
8 Comments
 
LVL 7

Expert Comment

by:Satyendra Sharma
ID: 40528216
Do you have office web apps server deployed?
If yes then the url set for web apps has to be on the cert installed on the web app server which should be trusted by the client endpoint..
0
 
LVL 1

Author Comment

by:dgapinski
ID: 40528229
I do - it works well (no cert issues) for whiteboard sharing, surveys, desktop and application sharing. Just not Powerpoint!
0
 
LVL 1

Author Comment

by:dgapinski
ID: 40528412
I did double check the cert that the OWA server is putting out, and it does specify the same URL as is listed in the Lync Topology builder.
0
 [eBook] Windows Nano Server

Download this FREE eBook and learn all you need to get started with Windows Nano Server, including deployment options, remote management
and troubleshooting tips and tricks

 
LVL 5

Assisted Solution

by:Mai Ali (MVP)
Mai Ali (MVP) earned 1500 total points
ID: 40529019
0
 
LVL 1

Author Comment

by:dgapinski
ID: 40531521
Hi Mai Ali - thanks for taking a peek! That was not it though. I can go to http://computername.domain.local/certenroll/caroot.crl and am able to download the CRL file. And I did double-check those settings are in place (i.e. SSL is not required).
0
 
LVL 1

Author Comment

by:dgapinski
ID: 40531743
As a followup, we are on the right track - I also saw that in our CAroot cert (in the certificate chain), we have an old entry for the last certificate server in the CRL distribution point field. So the scope of this issue is very different now. I'm not sure where to change the caroot cert and if I do, will that mean I will have to reissue all the certs in my domain?
0
 
LVL 1

Accepted Solution

by:
dgapinski earned 0 total points
ID: 40644768
I figured out how to remove the old CA and reissue the cert, so that was part of it, but we also had a networking issue that we had to iron out, where people off-domain and via VPN were not being routed to our Front End correctly for the address our topology was asking them to use.
0
 
LVL 1

Author Closing Comment

by:dgapinski
ID: 40653412
The other answer pointed me in the right direction, but we had to get our networking right first.
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: Ahmedn1
Introduction Some developers today tend to use Skypekit in their applications to make it more interactive with the user. Skype API is very awesome indeed but the problem is it is only available in C++, Java and Python. I can't understand why Micr…
Skype is a P2P (Peer to Peer) instant messaging and VOIP (Voice over IP) service – as well as a whole lot more.
The goal of the tutorial is to teach the user how to instant message and make a video call in Skype.
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.
Suggested Courses
Course of the Month12 days, 15 hours left to enroll

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question