Microsoft Web Lync App Mac Not Showing Shared Presentation

If you’ve been invited to an online meeting but don’t have Microsoft Lync 2010 communications software installed on your computer, you can join using Microsoft Lync Web App.

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If Lync is installed on your computer but the meeting opens in Lync Web App, it usually means that Internet Explorer is not your default browser. To fix this issue, you have two options: Make Internet Explorer your default browser, and then try joining the meeting again. You are right it is now Skype for Business and no longer Lync I'm still used to it be called Lync as it is still the same thing. Like I said we dont have Lync or Skype for Business either one. So we do not have an actual application and are also not able to host any kind of meetings to try and troubleshoot this. Important: Lync for Mac 2011 users and Macintosh users running Lync Web App can share only their desktops, not open programs. While sharing is in progress, a sharing icon is displayed in the top part of the meeting stage. Users will also only be able to share their primary monitor, not a secondary monitor.

  1. Lync Web App is designed mainly for external partners, such as salespeople, who are invited to Lync meetings, but it is also useful for employees who are not at their usual computer at meeting time, or have not yet upgraded to Lync 2010. To check whether you or a colleague will be able to use Lync Web App, see Supported platforms for Lync Web App.
  2. I noticed that even though I had uninstalled the Lync web app, it was still offering that as the default choice when I clicked on a meeting link (even though at this point the web app was not installed). Given this, I instead installed the Skype for Business web app from Microsoft to make that the default instead.
  3. Lync Web App is designed mainly for external partners, such as salespeople, who are invited to Lync meetings, but it is also useful for employees who are not at their usual computer at meeting time, or have not yet upgraded to Lync 2010. To check whether you or a colleague will be able to use Lync Web App, see Supported platforms for Lync Web App.

What is Lync Web App?

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Lync Web App is the browser-based version of Lync 2010 that allows people who don’t have a Lync account and haven’t installed the Lync client to participate in Lync meetings, using either a Windows or Macintosh operating system. It’s a “light” program that takes up very little space on your hard drive and is relatively quick to start using.

Who is it for?

WebMicrosoft Web Lync App Mac Not Showing Shared Presentation

Lync Web App is designed mainly for external partners, such as salespeople, who are invited to Lync meetings, but it is also useful for employees who are not at their usual computer at meeting time, or have not yet upgraded to Lync 2010.

To check whether you or a colleague will be able to use Lync Web App, see Supported platforms for Lync Web App.

What can it do?

During a meeting, Lync Web App provides many Lync features; these include meeting-wide instant messaging (IM), phone-based audio, file distribution, presenting with Microsoft PowerPoint presentation graphics program, and desktop and program sharing.

Notes:

  • Sharing and presenting features are dependent on permission levels set by the meeting organizer, so they may not be available. Only users with presenter privileges can share files and programs.

  • The first time that you initiate a sharing session, you will be prompted to download the required sharing plug-in.

Lync Web App cannot be used to schedule meetings or to exchange instant messages with individual meeting attendees.

Where do I start?

In addition to needing one of the supported operating system and Internet browser combinations, an Internet connection, a phone (unless you’re also running Microsoft Office Communicator 2007 R2), and an invitation to a Lync meeting, you will also need the Microsoft Silverlight 4.0 browser plug-in, or a later version of Silverlight, installed on your computer before your first online meeting.

For a list of supported operating system and browser combinations, see Supported platforms for Lync Web App.

To download Silverlight, visit the following Web site: Download Microsoft Silverlight.

With these requirements in place, you’ll be ready to get started. To learn how, see Quick Start: Participate in online meetings with Lync Web App.

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Symptoms

Consider the following scenario.

  • You join an online meeting by using the Skype for Business Web App or Lync Web App on macOS High Sierra 10.13 (including beta versions).
  • Someone in the online meeting shares their desktop.

In this scenario, you see only a black screen instead of the shared desktop.

This problem occurs when the meeting is hosted in Skype for Business Server 2015 or Lync Server 2013. This problem doesn't occur if the meeting is hosted in Skype for Business Online.

Workaround

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Skype for Business Web App

To work around this issue for Skype for Business Web App, use the Skype Meetings App instead. To do this, the system administrator must follow these steps:

Microsoft Web Lync App Mac Not Showing Shared Presentation Software

  1. Install the May 2017 update for Skype for Business Server 2015.
  2. Enable the Skype Meetings App by following the instructions in the 'Enable Skype Meetings App' section of Deploy Web downloadable clients in Skype for Business Server 2015.

After these steps are done, web app users will automatically use the Skype Meetings App when they join a meeting.

Lync Web App

There is no workaround yet for this problem for Lync Web App.

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Status

Microsoft is working closely with Apple to resolve this problem.

More information

This issue can also occur when the camera isn't granted access permission to Skype for Business.

  1. Select Apple menu > System Preferences, select Security & Privacy, and then Privacy.
  2. Grant Skype for Business access to the camera. You will be prompted to restart Skype for Business.
  3. Check if the issue is resolved after the restart.

Still need help? Go to Microsoft Community.