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Archive for the ‘Microsoft Lync 2010’ Category

Application sharing failed with external Partner (Non-Federated)

Working with one of the vendor who is not federated with us and doing application  sharing and come-up with an strange issue which is telling many story.

First-of-All, I would like to beat Microsoft for the wrong documentation they have furnished for ports requirement into Edge Server for Media traffic.

The client will ALWAYS try to connect over the 50k (50000-59999) port range. If it fails to do this, than it will fail back to the 443/3478 ports. This is not mentioned by Microsoft at all in TechNet Documentation below.

Note: Desktop/App sharing & file transfer always use TCP port (same AV ports) not UDP.

Port summary – Scaled consolidated edge, DNS load balancing with public IP addresses in Lync Server 2013

https://technet.microsoft.com/en-us/library/jj205394(v=ocs.15).aspx

Reference:

https://social.technet.microsoft.com/Forums/en-US/faf15263-8950-44e5-af6e-6eaf8b23f0b5/lync-2013-client-still-tries-to-connect-to-lync-edge-on-ports-5000059999?forum=lyncconferencing

So, Let jump into the problem been faced and how it was working with a workaround (Guess ??).

Problem:

Corp User is doing application sharing with remote user (Non federated but use lync) from corporate network and its failed with as usual error “We Could not connect the presentation due to network issue

UserError

Troubleshooting:

I did not do many traces as I am more relying lync CDR database which tells you exact issue and help to start with a basic troubleshooting. I looked into user CDR logs and see that “ICEWarn=”0x120“;”

ICEWarning

Has generated is BYE message from client logs which itself is sufficient to explain that remote firewall is not allowing outbound TCP connections in 50000-59999 port range and hence application sharing was failing.

log2

This is the GOTCHA which is not clearly explained by MS documentations.

Solution:

Now we understand that high port range is not allowed by remote network firewall and causing this issue, So I thought to force remote user to open this conf in WEB/443 and test it.

I edited the meeting conference by adding “?sl=1” in conference URL and tried testing.

https://meetXX.domain.com/anilsingh/ABC78WR3?sl=1

Yes, Its worked now J.

I have asked remote customer to work with his network team and make sure that 50k outbound ports is opened to work.

Lync dropping calls after 1-2 seconds!

Problem Description:-

Dealing with a single user problem which is complaining that when someone call him to Lync, the call popup appear for 1-2 second and disappear.

Workaround:-

Disabling Enterprise voice feature solved the problem but left user to do not make call outside which was another problem/Limitation.

Troubleshooting:-

We started looking the UCCP and CDR logs from monitoring server for user SIP URI and understand that call is getting transfer to UM and failing as we do not have UM integration.

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I also tested “Test-CSPSTN” call to user SIP and see the different error message which was pulling us to check routing problem. Most of the call were test by lync-lync  call which does not use gateway so Below error was surprises.

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Solution:-

We started to think the use CSData corruption which may causing the problem. I follow below steps

## Backup specific user data
a) Export-CsUserData -PoolFqdn “POOL-FQDN” -UserFilter “test@Domain.com” -FileName “C:\temp\Testuserdata.zip ”
## this command will remove all Lync attributes from the AD accounts, it’s identical to the “Remove from lync server” in control panel.
b) Remove-CsUser –Identity Test@Domain.com
c) Re-create user in Lync, manually assign polices, enterprise voice extension etc..
## this command will restore Lync user data (contact list, logs etc..) it will append the user data instead of overrating data like in the “Import-CsUserData” cmdlet.
d) Update-CsUserData -Filename “C:\temp\Testuserdata.zip” -UserFilter test@Domain.com

Problem Solved ?? , UHH, Guess ??.  NO NO L, We have still same issue !!!!!

Again tried to above steps but did not use “Update-CsUserData” as I thought there could be some stale/bad entry in the contacts, Conference, LIS data which may be causing the issue.
Now, The problem is solved.

Microsoft Diagnostics Services—Self-Help

November 30, 2013 Leave a comment

The “Fix it Center Pro” name and its associated portal is retired now and are replaced by the Microsoft Diagnostics Services—Self-Help portal. The new portal is an automated troubleshooting service from Microsoft. This service can help make it easier to identify solutions to problems with Microsoft applications. Microsoft Diagnostics Services—Self-Help uses targeted analysis to scan your system to identify and resolve specific problem areas. The analysis sessions scan your system to identify solutions for specific problem areas. The results are uploaded to Microsoft servers to be processed and to identify any known issues. If a known issue is found, a message is displayed that explains the steps that you can take to resolve the problem.

Wanna to go to link ?? Go here

New Features Available for Windows Phone, iPhone and iPad Lync mobile apps

Using this feature is simple. After the Lync client is downloaded from the respective app store, when you click on a Lync Meeting URL, you will have the option to “sign in as a guest” or continue with your authenticated Lync account.

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Another key feature that users have asked Microsoft about is the ability to start an unscheduled multi-party Lync Meeting from their mobile devices. The ability to connect with people quickly and easily is one of the best features of Lync on the desktop and MS is excited to bring it to our mobile apps for Windows Phone, iPhone and iPad today.

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Cool Exchange Blog sites

I Just came across one link on The Exchange Team Blog, where you can hit all famous blogger site. Lots of them I have already covered in my site Blog role 🙂 !!

Enjoy Reading !!!

Exchange Blogs Sites

A Pictorial view of Voice Routing in Lync Server

Slide taken from TechEd 2012 🙂 !!!

voice1

Lync Server 2010 Resource Kit

October 16, 2012 2 comments

It’s here! Get the Lync Server 2010 Resource Kit, your one-stop-shop, under-the-hood, technical reference for Lync Server 2010. The Lync Server Resource Kit is the result of a humungous cross-team effort that brought together the deep knowledge of over 100 Lync experts from inside and outside Microsoft.  With 19 chapters, you will find the in-depth, nitty-gritty information you need to deploy, configure, support, and troubleshoot Lync Server 2010.  For a detailed summary of each chapter, see the Lync Server 2010 Resource Kit Overview. To download yourFREE chapters, see the Microsoft Lync Server 2010 Resource Kit

Categories: Microsoft Lync 2010