Lync web app crashes

I have a client trying to use the Lync Web App, however every time they try to connect they get the following message:
Problem signature:<o:p></o:p>
Problem Event Name: APPCRASH<o:p></o:p>
Application Name: LWAPlugin.exe<o:p></o:p>
Application Version: 5.0.8658.0<o:p></o:p>
Application Timestamp: 528a85db<o:p></o:p>
Fault Module Name: vdpsrc.dll<o:p></o:p>
Fault Module Version: 1.1.0.51<o:p></o:p>
Fault Module Timestamp: 4d6e5e08<o:p></o:p>
Exception Code: c0000005<o:p></o:p>
Exception Offset: 00005ef5<o:p></o:p>
OS Version: 6.1.7601.2.1.0.768.3<o:p></o:p>
Locale ID: 2057<o:p></o:p>
Additional Information 1: 0a9e<o:p></o:p>
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789<o:p></o:p>
Additional Information 3: 0a9e<o:p></o:p>
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789<o:p></o:p>
<o:p></o:p>
<o:p></o:p>
How do we fix this so that he can join our Lync meetings?
Thanks in advance for your help.

Please try to install and reinstall Microsoft Lync Web App Plug-in.
Lisa Zheng
TechNet Community Support

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Windows Server 2008 (TS) and Lync Web App installation failure

Hey folks,
I've run into a little big problem due the Lync Web App installation via mstsc on a stand alone Terminal Server 2008 SP2 64 Bit. When I tried to install the Lync Web App Plugin via
mstsc and standard user I get the message:
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set up a policy that the installation
prevents"
Till that it's just fine.
The next thing I did is to disable the UAC and DEP, but same problem as above. I also tried to extract the install EXE for the MSI packages to allow the installation. But did not work.
After I searched the internet for an answer relating to this problem I've had to create or change a RegEdit entry. So I switched to the registry to:
HKEY_Local_Machine\Software\Policies\Microsoft\Windows\Installer
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mstsc and standard user again and this message appeared:
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Now the curious thing is, that when I am logged on locally, the standard user is able to install the Lync Web App Plugin. And it works fine. After the installation is complete I can switch to mstsc again and it works.
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Any suggestions?

Before you install the application, change your user mode to installation mode.
You can run the following command with Prompt Command:
Change user /install
After the application is installed, change back to execution mode, you can do so by running the following command:
Change User /Execute
Lisa Zheng
TechNet Community Support

Install Lync Web App Plugin For Another User

I'm wondering if there is a way to install the plugin for the Lync Web App for another user. The reason why is that administrative permissions are required and our users are not allowed to have those permissions. I have the MSI but when I look at it, it
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"Cannot install [ProductName].Setting the AllUsers property is not allowed because [ProductName] is a per-user application."
Is there a way that I can install the MSI, maybe through the command line or another method, and specify another user so it installs to their profile?
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Hi,
This is typically achieved by allowing exceptions in your software control strategy for the required executable;
LWAPlugin.exe
LWAVersionPlugin.exe
AppSharingHookController.exe
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This typically occurs in VDI deployments where users are not able to install software onremote server, so the above rule is added to the Software Restriction Policy (providing that's what you're using to control application installation).
I'm not familiar with any associated cmd line switches I'm afraid.
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Blog:www.gecko-studio.co.uk/
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or queries.

Only Guest users with Lync Web App

Hello!
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Hi,
You can change the publishing rule to block “Join using your corporate credentials” option. For details:
http://blogs.technet.com/b/lyncinternals/archive/2011/11/16/3462376.aspx
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make
sure that you completely understand the risk before retrieving any suggestions from the above link.
Kent Huang
TechNet Community Support

Lync Web App will not load and does not error out

Hi,
Recently I've been receiving invites to Lync 15 meetings. I am able to join the meetings and things work fine until somebody shares their desktop or a presentation. Then I get a message saying Windows firewall has blocked an app and asks if I want
to allow the Lync Web App to run. I click OK and it appears to begin loading. The app doesn't load, I can still hear audio on the meeting but all the rest of the Lync app freezes except for the spinning circle wheel telling me it is loading.
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JAS

Hi There,
Thanks a lot for reporting this issue. And I am sorry that you are hitting this issue while attending Lync meetings. Following details will help us diagnose it further -
1) Do you have Lync 2010 or Lync 2013 client installed on the machine?
2) Do you get this issue again and again when you join the meeting or it was one-off?
3) When you killed "Lync Web App" from task manager, was audio flowing through even after that? Were you still attending the meeting from the browser?
4) How much time did you wait when UI was showing "Loading" until you killed the Lync Web App from task manager?
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Accessing Shared OneNote from Lync Web App

When attempting to access a OneNote that has been shared in a Lync Meeting via Lync Web App, users are taken to OneDrive in a separate browser window and get an error that they do not have permissions to access the notes or that the notes do not exist. Going
to OneDrive I understand since the OneNote notebook is hosted on OneDrive (instead of Sharepoint), but I don't understand the permission error.
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Mac users rely on accessing OneNotes via Lync Web App and OneDrive (OneNote Online) since there isn't a OneNote client for Mac and most of the time they will be joining meetings via Lync Web App instead of the 2011 client.

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Lisa Zheng
TechNet Community Support

Lync Web App no sound and couldn't see shared desktop

Hi,
Today I tried to join a scheduled meeting which I've done may times before without any problem.
I was let into the meeting but had no sound and couldn't see the shared presentation. I could see other participants and see typed messages. There was a button in the middle of the screen 'Participate in the sharing session by clicking Rejoin'
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I'm using Win 7 and IE 11 but I also tried on Firefox and had the same issue.
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Hi There,
Thanks a lot for reporting this issue. And I am sorry that you are hitting this issue while attending Lync meetings. Following details will help us diagnose it further -
1) Do you have Lync 2010 or Lync 2013 client installed on the machine?
2) Do you get this issue again and again when you join the meeting or it was one-off?
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manums

Lync2013: Lync Web App sign in as guest

Lync Web App sign is as guest is returning the following error:
"There was an error in joining you into the meeting. Please contact your support team."
& I'm seeing this error being generated on the Lync server:
Storage Service had an EWS Autodiscovery failure.
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Hi MikeMerkato,
Please check the anonymous access settings and conference policies.
AllowAnonymousParticipantsInMeetings:
Indicates whether anonymous users are allowed to participate in the meeting. If set to False then only authenticated users (that is, users logged on to your Active Directory
Domain Services or the Active Directory of a federated partner) are allowed to attend the meeting. The default value is True.
This setting applies to the user who organizes the conference: if set to False, no conference created by a user affected by this policy will allow anonymous participants. However, the
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https://technet.microsoft.com/en-us/library/gg425788.aspx
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IT.
So...?
"Never, ever doubt what nobody is sure about." -Willy Wonka

Confirm that the External Web Services FQDN for the Lync Front End pool is not defined anywhere else in the topology, must be unique. Seen people use the same FQDN as their Edge server.
Confirm External Web Service FQDN is on the SAN list for the Reverse Proxy Certificate and the Lync Front End Certificate.
Please mark posts as answers/helpful if it answers your question.
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We have LYNC Server 2013 deployed on premise. Our clients are LYNC 2013. When someone external to our organization sends us a Lync meeting request we are able to connect with our Lync 2012 desktop client but only Audio is available. We cannot share
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I've found the following articles that suggest that the desktop clients are not the preferred choice to connect to external meetings.
http://blog.schertz.name/2011/11/forcing-lync-web-app/
http://www.computer-talk.com/en/blog/item/attendees-cannot-join-your-lync-web-conference
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Identity                           : Global
MaxContentStorageMb                : 500
MaxUploadFileSizeMb                : 500
MaxBandwidthPerAppSharingServiceMb : 375
ContentGracePeriod                 : 15.00:00:00
ClientMediaPortRangeEnabled        : True
ClientMediaPort                    : 5350
ClientMediaPortRange               : 40
ClientAudioPort                    : 50020
ClientAudioPortRange               : 20
ClientVideoPort                    : 58000
ClientVideoPortRange               : 20
ClientAppSharingPort               : 42000
ClientAppSharingPortRange          : 20
ClientFileTransferPort             : 42020
ClientFileTransferPortRange        : 20
ClientSipDynamicPort               : 7100
ClientSipDynamicPortRange          : 3
Organization                       :
HelpdeskInternalUrl                :
HelpdeskExternalUrl                :
ConsoleDownloadInternalUrl         :
ConsoleDownloadExternalUrl         :

You should be fine using the full Lync client, it's not restricted by default. If there's an issue, it's typically in the networking related to your edge, or the edge of the organization you're federating with.
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environment or federation.
Can your external users share a desktop with internal users? Can they do it externally in a conference hosted by you? Can the remote organization share desktops with you when connected to your conferences? And in these conferences,
have the marked you as presenter so you can present your desktop?
There's no good way to automatically force users to use the web app each time unfortunately. The other organization would need to hardcode that ?sl=1 into each meeting invite sent.
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer".
SWC Unified Communications

(Lync 2013) Lync Web App: Call ended because of network connectivity issues

I'm having a very strange problem with Lync Web App. When I try to join a meeting, it works in the following conditions:
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Hi,
Since the issue only happen on Lync web app that was handled by reverse proxy. The issue maybe related to RP configuration. Please refer to one of the following links to check if the RP configuration are correct.
How to Configure ForeFront TMG 2010 as Reverse Proxy for Lync Server 2010
http://social.technet.microsoft.com/wiki/contents/articles/9807.how-to-configure-forefront-tmg-2010-as-reverse-proxy-for-lync-server-2010.aspx
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http://social.technet.microsoft.com/Forums/en-US/lyncconferencing/thread/e5d8d247-4646-4e2a-b6f0-e0fd8b3a5ace
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Kent Huang
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Please try to restart the Lync Web Conferencing Service on Lync Front End Server.
Try to install the latest update for Lync Server.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Lync Web App default Prompt Audio Join

Is it Is there a way to force Web App to ask all users how they want to join audio? (Lync, dialin, Call me)
At the moment i'm having to have the user connect then go to settings set prompt me, then disconnect and reconnect seems a bit long winded.

This a huge weakness in an otherwise superb product! I have successfully convinced my management that we should cancel WebEx in favor of Lync for all but our Training and Event uses. However, there's no way I can ask even the friendliest of customers
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You will be dumped into the first meeting using your computer's audio.
NOTE: You will be muted, but your whole office will hear the rest of us talking until you complete steps 4 through 7.
Click "Options"
Click "Phones"
Make a selection on what you prefer for the future or prompt each time <--- this should be the default!!!!
Exit meeting
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Click the join link again
Now you can use your phone
This is utterly unacceptable. I realize Microsoft would like everyone on the planet to own a USB headset but that is simply not the case (yet) and to foist this default behavior on unsuspecting business contacts is just not an option. We will
be sticking with WebEx until this can be addressed.
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E61 Web app crashes

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Lync 2013 Web App Sharing not working.

We are having a problem with Lync Web App 2013. Our external customers can open the meeting link and join the meeting without a problem. Once they are in the meeting an internal user begins the presentation by sharing his screen. The Lync
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-->We tried this from an external wireless hotspot and it worked fine, thus, it seems something in this customer's company firewall that is blocking it.
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The ports 1024-65535 * are used for application sharing.
You can configure the port ranges for Lync clients.
http://technet.microsoft.com/en-us/library/jj204760.aspx
You can’t use 443 as port 443 is used for HTTPs.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Lync web app crashes

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