May 23, 2016

Laptop freezes when play audio / video using any browser.


Laptop freezes when play audio / video using any browser. 

Recently I see issue where every time I try to play or watch Audio / video using any browser like internet explorer, Firefox or Chrome on my Dell laptop with Windows 7, my Laptop always ends up freezing. I cannot move my mouse or anything. Then I have shut down and restart laptop to use.

Resolution:
I tried to update USB driver, audio driver, reinstalled browser however did not resolve.
Finally I updated the Video driver and this resolves my issue.
Right click Computer > Manage > Device Manager > Expand the Display adaptor > Right click on listed card and Click on “Update Driver Software..” see attached screenshot. 

After update, restart your laptop and play audio/ video.

Thank you.

May 21, 2016

We can’t connect to the server for presenting right now.


Issue: Skype for Business meeting features no longer function in Lync Server 2010, Lync Server 2013, or Skype for Business Server 2015 after installing Security Bulletin MS16-065.
Error message:

We can’t connect to the server for presenting right now.
An error occurred during the Skype Meeting.
Network issues are keeping you from sharing notes and presenting whiteboards, polls and uploaded Pow…
 


Problem Statement:

Above error messages that users may receive when this problem occurs after you install the Microsoft .NET Framework Security Update MS16-065 on a Front End or Standard Edition server for Lync Server 2010, Lync Server 2013, or Skype for Business Server 2015, several conferencing modalities no longer function for internal users.

The following are known modalities affected by this issue:

·       Whiteboards

·       Uploading PowerPoint Presentations

·       Sharing Notes

·       Polls

·       Q&A

This problem occurs because an information disclosure vulnerability exists in the Transport Layer Security protocol and the Secure Sockets Layer protocol (TLS/SSL) as they are implemented in the encryption component of the Microsoft .NET Framework. An attacker who successfully exploits this vulnerability can decrypt encrypted TLS/SSL traffic.

This vulnerability is fixed by the security update that's discussed in Microsoft Security Bulletin MS16-065. This update changes the way that the .NET Framework encryption component sends and receives encrypted network packets.

The changes that are introduced in this security update affect how Skype for Business, Lync, and Lync for Mac desktop clients communicate together with the Web Conferencing Service on the Front End and Standard Edition servers. These changes cause the problems that are mentioned in the problem statement section.


Workaround:

May 2016 .NET security update released by Microsoft actually breaks PowerPoint presentation and whiteboard, Sharing note, Q&A etc in Skype for Business/ Lync most of versions.

Also It has been confirmed in all server versions; 2010, 2013 and 2015. It is reproducible every time upon installing and removing the security update.

Uninstalling the 3142030 update and rebooting the server or using a regkey/reboot fixes the break, but effectively removes the security fix.

Workaround provided by Microsoft:

Warning these workarounds may make a computer or a network more vulnerable to attack by malicious users or by malicious software such as viruses. We do not recommend these workarounds. However, we are providing this information so that you can implement these workarounds at your own discretion. Use these workarounds at your own risk.

Important Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.

To work around this issue, follow the guidance in the following article in the Microsoft Knowledge Base:

3155464 MS16-065: Description of the TLS/SSL protocol information disclosure vulnerability (CVE-2016-0149): May 10, 2016


Additionally, an exception must be added to be able to restart the DATAMCUSVC.exe process and the version-appropriate Web Conferencing service. Use the following examples for setting the exception in your environment.

For Skype for Business Server 2015

1.    Determine and record the path in which the DATAMCUSVC.exe file is located on the server.
Note By default, the installation path is as follows:

C:\Program Files\Skype for Business Server 2015\Web Conferencing

You can also obtain this information through the Services tool by reviewing the properties of the Skype for Business Server Web Conferencing service.

2.    Start Registry Editor. To do this, click Start, click Run, type regedit, and then click OK.Locate the following registry subkey:

HKEY_LOCAL_MACHINE\Software\Microsoft\.NETFramework\v4.0.30319\System.Net.ServicePointManager.SchSendAuxRecord
Note If you are proactively deploying the update in advance of applying the .NET Framework security update, you must create one or more keys manually because they do not yet exist.

3.    Create the following DWORD name and value:

DWORD Name:Path_obtained_in_Step_1\DATAMCUSVC.exe
DWORD Value: 0

Important Do not include quotation marks in the DWORD name.

The new DWORD name and value should resemble the following:

DWORD Name: C:\Program Files\Skype for Business Server 2015\Web Conferencing\DATAMCUSVC.exe
DWORD Value: 0

4.    Restart the Skype for Business Server Web Conferencing service (RTCDATAMCU).

5.    Users must log in again by using their Lync or Skype for Business desktop client in order to completely resolve the problem.

For Lync Server 2013

1.    Determine and record the path in which DATAMCUSVC.exe is located on the server.
Note By default, the installation path is the following:

C:\Program Files\Microsoft Lync Server 2013\Web Conferencing

You can also obtain this information through the Services tool by reviewing the properties of the Lync Server Web Conferencing service.

2.    Start Registry Editor. To do this, click Start, click Run, type regedit, and then click OK.

3.    Locate the following registry subkey:

HKEY_LOCAL_MACHINE\Software\Microsoft\.NETFramework\v4.0.30319\System.Net.ServicePointManager.SchSendAuxRecord
Note If you are proactively deploying the update in advance of applying the .NET Framework security update, you must create one or more keys manually because they do not yet exist.

4.    Create the following DWORD name and value:

DWORD Name:Path_obtained_in_Step_1\DATAMCUSVC.exe
DWORD Value: 0

Important Do not include quotation marks in the DWORD name.
The new DWORD name and value should resemble the following:

DWORD Name: C:\Program Files\Microsoft Lync Server 2013\Web Conferencing\DATAMCUSVC.exe
DWORD Value: 0

5.    Restart the Lync Server Web Conferencing Service (RTCDATAMCU).

6.    Users must log in again by using their Lync or Skype for Business desktop client in order to completely resolve the problem.

For Lync Server 2010

1.    Determine and record the path in which DATAMCUSVC.exe is located on the server.
Note By default, the installation path is the following:

C:\Program Files\Microsoft Lync Server 2010\Web Conferencing
you can also obtain this information through the Services tool by reviewing the properties of the Lync Server Web Conferencing Service.

2.    Start Registry Editor. To do this, click Start, click Run, type regedit, and then click OK.

3.    Locate the following registry subkey:

HKEY_LOCAL_MACHINE\Software\Microsoft\.NETFramework\v2.0.50727\System.Net.ServicePointManager.SchSendAuxRecord
Note If you are proactively deploying the update in advance of applying the .NET Framework security update, you must create one or more keys manually because they do not yet exist.

4.    Create the following DWORD name and value:

DWORD Name:Path_obtained_in_Step_1\DATAMCUSVC.exe
DWORD Value: 0

Important Do not include quotation marks in the DWORD name.
The new DWORD name and value should resemble the following:

DWORD Name: C:\Program Files\Microsoft Lync Server 2010\Web Conferencing\DATAMCUSVC.exe
DWORD Value: 0

5.    Restart the Lync Server Web Conferencing service (RTCDATAMCU).

6.    Users must log in again by using their Lync or Skype for Business desktop client in order to completely resolve the problem.

7.    Test the meeting contact.

Thank you.

May 9, 2016

How to create clickable and mobile friendly conference ID in Skype for Business meeting in Outlook?


Issue: How to create clickable and mobile friendly conference ID in Skype for Business meeting in Outlook?

Recently I came across situation where I face difficulty while dialing the conference number and conference ID using iPhone mobile device because phone number is clickable however I have to type conference ID manually after phone number and leader PIN. It would have nice if I could use make /create a Lync/skype meeting in outlook with the clickable conference information with mobile friendly number which I can just click on my mobile to join conference with one click.

As per my understanding there no specific customization on server side to make dialin and conference ID as clickable.
You can do this using your Outlook which you are using for scheduling online Skype/Lync meetings.
Follow the below steps to create create clickable conference number format:
1.     Open Outlook > click on New Item > Select Skype Meeting > click on “Meeting Options”.
2.     In Meeting Option page select “My dedicated meeting space (less secure)
3.     Click on “Remember Setting” and then “OK”.  Refer below image.  
 
Note: Above steps will keep your conference ID same so that you’re your customize invite and add clickable and mobile friendly conference information.

You can find dialin number and conference ID in your meeting invite.
4.     Without leader code:
·        Clickable Conference Number without leader code (Mobile-friendly):  
·        Format: ,#
·        E.g.: +14083337373,2959000#
OR

With leader code:
·        Clickable Conference Number with leader code (Mobile-friendly):
·        Format: ,#,*
·        E.g.: +14083337373,2959000#,*54321
Invite will look like below:

Once you added your desire number format in the body of the invite. Send that invite to attendee. So attendee can join your meeting using clickable conference information using there iPhone mobile device.
Below Image from iPhone with and without leader code.
Without Leader code: 
 

With leader code:


I have not tested using Android device but I think it will work.  

Remember: Your conference ID doesn’t change – it stays the same (unless you deliberately change it on the dialin-conferencing webpage, which will invalidate your clickable and mobile friendly dial). If you want to join somebody else’s meeting using clickable and mobile friendly dial, then put their conference ID in here instead of your conference ID.  

Note: make sure you use a ‘#’ to terminate any multi-digit input, like conf ID.

 

Thank you.

May 6, 2016

The request failed. Please try again. Make sure that you are signed in to Skype for Business.


Unable to send Meeting invitations from Outlook in Skype for Business.

Error: The request failed. Please try again. Make sure that you are signed in to Skype for Business.

Recently we saw multiple computers show above error when creating a Skype for Business Meeting through Outlook 2010 and 2013 in windows 7. Most of user has Skype for Business version is: 15.0.4815.1001.
This is basically know issue in below mentioned Microsoft updates.
 
After you install the March 8, 2016, update for Microsoft Lync 2013 (Skype for Business) (KB3114831), you cannot send Skype for Business meetings from Microsoft Outlook. When you use Outlook’s Autocomplete feature to resolve recipients' addresses for the meeting invitation, the invitation is not sent, and you receive above error message.
 
Workaround:

Note: Make sure to have registry backup before modify, back up the registry for restoration .
To work around this problem, clear the Auto-Complete cache. To do this, use one of the following methods:
a.     Change the manner in which the Skype for Business Add-in for Outlook (UCAddin.dll) resolves recipients for meetings. To do this, create the following registry key:
Subkey location:
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Lync\AddinPreference

DWord name: RecipientResolutionMode

Value data (decimal): 2
 

b.     In Outlook Options on the Mail screen under Send messages, clear the Use Auto-Complete List to suggest names when typing in the To, CC, and Bcc lines check box. Then, click the Empty Auto-Complete List button. 

Thank you.

May 4, 2016

Meeting Option does not update Skype for Meeting invite


Issue: Meeting Option does not update Skype for Meeting options. 

Problem Statement:
Changing Meeting option in outlook meeting invite sometime not effect on Skype for Business meetings.
This is seems like settings that get set while organizing is what being used. Reoccurring meeting updates are not so consistent. So this is Ok for individual meetings, but for recurring meeting it can painful.
Initial invite meeting options are working well however not the updates work every time.
Workaround:
Ask users to send new meeting instead of sending updates whenever possible.
OR
User has to update the meeting option twice.
1.     Open existing meeting in Outlook Calendar > Click “Meeting Options” and then select “My dedicated meeting space”.  Apply the changes and send the update mail.

2.     Re-open the meeting in Outlook Calendar again. Click “Meeting Options” and then change the meeting options to fit your meeting requirements. Apply the changes and send the update mail.
3.     Test the Meeting and updates have been taken effect.
OR
Re-install the Office / Outlook to work but this is not the best option.

This is looks to be bug however I cannot reproduce issue consistently. 

Thank you.

April 17, 2016

Unable to join Skype for Business/ Lync meeting remotely using Mac Book.


Issue: Unable to join Skype for Business/ Lync meeting remotely using Mac Book.

Problem statement:

Recently I came across very strange issue. Skype for Business/ Lync Meeting join was working remotely using windows computer/laptop, Mobile app however meeting join was NOT working using Mac book..

Resolution:

There was no issue when Windows client join meeting means external meeting Join URL and reverse proxy was working.

Also Skype for Business meeting join was working correctly internally using Mac Book hence there is something wrong externally or on Reverse Proxy only.

Hardware load balancer was working correctly and all required port was open on external firewall hence concentrated on Reverse Proxy server.

Even Reverse Proxy was working because remember windows client was able to join meeting correctly so this was strange issue.

Hence I reset the IIS on reverse proxy server. (I use IIS ARR for Reverse proxy)

Command: IISRESET

This actually did the trick and meeting join started externally using Mac Book.

I don’t know what was different when Mac Safari browser was joining meeting.  Looks like when I try to join the meeting using Mac, this was quering the meeting URL which will go through the reverse proxy, here it might not activate the Lync client and the traffic will flow through the reverse proxy, joining a meeting might fail if there are any issues with the reverse proxy.

 

Thank you.

Skype Meeting Broadcast troubleshooting



Skype Meeting Broadcast troubleshooting

How to setup Skype Meeting Broadcast: refer this article.
How to schedule Skype Meeting Broadcast: refer this article
How to join Skype Meeting Broadcast: Refer this article

How to provision user to use Skype Meeting Broadcast meeting as presenter?
·        Assign the appropriate license once AD user showed up in Office365 Tenant.
·        User must be enable on Lync or Skype for Business enable to use rich feature provided by Skype for Business/ Lync Server.
·        Grant external access policy with Public IM connectivity (PIC) access in order to present Skype Broadcast meeting.
Note: Keep in mind if you are using Skype for Business/Lync On-Prem then you have to have enable PIC to user who is going to use Skype Meeting Broadcast as presenter, event, producer etc.
Incase user don’t have PIC access policy then,
If user is not enable for PIC (Public IM connectivity) then when user Join Skype Meeting Broadcast as presenter/organizer then they will get error. “An error occurred during the Skype Meeting.” 

When you open UCCAPI log in snooper then you will see Forbidden access.

ms-diagnostics: 1001;reason="From URI not authorized to communicate with public IM providers.

SIP/2.0 403 Forbidden
Authentication-Info: TLS-DSK qop="auth", opaque="635E2E66", srand="35CB27B9", snum="303", rspauth="5a26018afe5cb3977c98c74c755bd6d3d834816f", targetname="hq1wp-fe13.corp.brocade.com", realm="SIP Communications Service", version=4
Via: SIP/2.0/TLS 10.120.21.7:57273;ms-received-port=57273;ms-received-cid=49A7F00
Content-Length: 0
From: "Balu Ilag";tag=c7f050a971;epid=3acd7df579
To: ;tag=50EFE76D92074B127659070A4A9BCFDC
Call-ID: db284467514844be9238d77124816a45
CSeq: 1 INVITE
ms-diagnostics: 1001;reason="From URI not authorized to communicate with public IM providers";from-uri="bilag@brocade.com";destination="BL20R04meet597@noammeetings.lync.com";source="cssipbrm.brocade.com"
Server: RTC/5.0

Resolution:
In order to resolve this we must assign external policy with PIC access the user who presenting / organizing Skype Broadcast Meeting.
Using PowerShell:
PS C:\> Grant-CsExternalAccessPolicy -Identity "bilag" -PolicyName "Allow Federa

tion+Public+Outside Access"

Using Control panel:
Lync Control Panel > Users > find user and select external access policy as “Allow Federation+Public+Outside Access”


Click on OK. 

Sorry, we were trying to get some info about your company’s policies but could’t.
 
User will get this error when user does not have Office365 license assign.
Login to the Office365 portal > Users > Active Users > Select user and edit and assign appropriate license.  

Unable to join Skype Meeting Broadcast in browser.

Error: No compatible source found for the current browser environment. (0x10600001)

When I search using error code “0x10600001” found below description on https://amp.azure.net/libs/amp/latest/docs/
No tech player that can play the requested sources, but if Flash plugin in is installed, it is likely that a source could be played. 'No compatible source was found for this video.' is displayed to the end user.
This is basically error when browser could not play or show audio/video.
Resolution:
Simply install latest Adobe Flash Player as suggested resolution on error page.
Or  
Sometimes the website you’re visiting doesn't look right. It shows up as a jumble of out-of-place menus, images, and text boxes. What's going on? One possible explanation: The site might have been designed for an earlier version of Internet Explorer. If Internet Explorer recognizes that the webpage isn't compatible, you'll see the Compatibility View button on the Address bar. Try clicking it.
 

Issue: Internet exploror cannot load Yammer feeds In Skype Meeting Broadcast?

Resolution:

Sometimes, particularly in Internet Explorer 11, Yammer might not load successfully. To resolve this,

Open Internet Explorer and click Internet Options > Security. Deselect Enable Protected Mode and click OK. Refresh your browser to reload the page with the new settings. Refer below.
 

 Upcoming features:

Microsoft is planning to add Question and Answer apps on right side of Skype Meeting Broadcast page.
How it will gono look like?



Thank you.

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