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NASHMartyn-4100 avatar image
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NASHMartyn-4100 asked JimmyYang-MSFT commented

Whiteboard fails on first attempt consistently, works ok on second attempt - Skype for business 205 server

Hi all,

Got a rather strange one. We have an new install of Skype for Business Server 2015 Enterprise edition (with May 2021 patches) running on windows 2019 server, with clients using Skype for business 2019 (16.0.10374.20040).

Chat, persistent chat, screen sharing etc are all working just fine.

WhiteBoard, Poll and Q&A, do work, but ONLY on the 2nd try. First try always fails, with the following message shown in the Skype Client

"Whiteboard [1] can't be uploaded to the meeting." in a pop-up and "An Error occurred while sharing" in the Client.

Anyone got any clues?

Thanks in advance

office-skype-business-server-administrationoffice-skype-business-server-deploymentoffice-skype-business-server-conferencing
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1 Answer

JimmyYang-MSFT avatar image
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JimmyYang-MSFT answered JimmyYang-MSFT commented

Hi @NASHMartyn-4100

Does anyone else have the same issue in your organization?

The following official document said that if you install the Microsoft .NET Framework Security Update MS16-065 on a Front End or Standard Edition server for Skype for Business 2015, the internal client cannot connect to conferencing modalities normally. You could try to check it and see if the workaround is helpful to you.

Moreover, please try to clear the Skype for Business client cache file by following these steps:

  • Log out of Skype for Business

  • Delete any sign-in information

  • Exit Skype for Business

  • Navigate to Users > [Your Username] > AppData > Local > Microsoft > Office > 15.0 > Lync

  • Delete the sip_profileName folder

  • Delete all files in Tracing folder. Do not delete the folder itself




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@NASHMartyn-4100

Is there any update on this case?
Please feel free to drop us a note if there is any update.
Have a nice day!

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Thanks for the article, I have followed it, and placed the REG key onto each of our Skype For Business 2015 servers, rebooted them all in turn.
I have also cleared the files from the Skype 2019 client as per your suggestions. I The MS Article does not have any workarounds for a Skype 2019 client.

Unfortunately this has not made any difference.

On First launch of a Whiteboard I get error "Whiteboard [1] can't be uploaded to the meeting." in my Skype 2019 client.
On the second attempt (provided this attempt is made immediately) it starts the Whiteboard OK.


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@NASHMartyn-4100

It is really strange, could you check if there is any error error message from event viewer in the front end server?

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