Thursday, September 18, 2014

Lync 2013 WAC Issue "Sorry, PowerPoint Web App Ran into a problem opening this presentation."

Hello Readers,
Currently we are facing Powerpoint presentation issues for Lync 2013 users internal as well as external.
IM, A/V , Polling working fine
Tried scenarios are :

Lync 2010 users to Lync 2013 users: showing presentation at both sides (internal & external)

Lync 2013 users to Lync 2010 users: not showing presentation on Lync 2013 client but showing at Lync 2010 client (internal & external)

Lync 2013 users to Lync 2013 users: not showing presentation at both sides (internal & external)

Below is the error we get

NOTE : This issue occurs due to several errors as I mentioned in below link.
After I made several changes in Farm & IISARR rules everything was working fine like Powerpoint presentation sharing internal as well as external.
But after 2 days I was again started getting above error while I was testing sharing Powerpoint presentation between external Lync 13 users.
This issue occurs due to Caching of powerpoint files on Office Web Apps server below path as shown:

Followed this link :
Special Thanks to Anthony who helped me to resolve this issue.
First stop the Office Web Apps Service on Web apps server & Simply go to the above path & delete or move the data to other path if you need.
Now start the Office Web Apps Service & try to share the PowerPoint presentation files which we get errors.
Now it should work fine without any issues.
Mine Powerpoint presentation sharing is working fine.

Anand S

Tuesday, September 16, 2014

Lync 2013 Your server configuration has changed Please restart Lync

Hi All Readers,

Once we move the user from Lync 2010 pool to Lync 2013 pool. Eveything was working fine from the Desktop/Laptop internal as well as external networks.

From Smart Phone devices also working fine but from iPad when a user tried to use Lync 2013 client from external network it was showing "Your server configuration has changed Please restart Lync"

Below is the screen shot

I had increased the ProxyPass timeout from 200 to 600. I haven't seen the "configuration has changed" message for the past 18 hours.

Below is the settings changed screen shot.

This resolved my issue. I hope it will help you out.

Anand S

Wednesday, September 3, 2014

Lync 2013 Archiving and Monitoring SQL database version mismatch issues

Hello All,

When we try to create Lync 2013 Archiving database & Monitoring database while publishing of the topology.

It creates the Archiving & Monitoring databases but it throws error of Creating database failed with below errors :

Resolution : By default it uses SA account even though if you specified other account. We must need the SA account with default permissions on SQL server where we create the databases. It will successfully create the databases.
****Creating DbSetupInstance for 'Microsoft.Rtc.Common.Data.ArchivingDatabase'****
Initializing DbSetupBase
Parsing parameters...
Found Parameter: SqlServer Value
Found Parameter: SqlFilePath Value C:\Program Files\Common Files\Microsoft Lync Server 2013\DbSetup.
Found Parameter: Serveracct Value SETINDIA\RTCComponentUniversalServices.
Found Parameter: DbPath Value E:\CsData\ArchivingStore\(default)\DbPath.
Found Parameter: LogPath Value F:\CsData\ArchivingStore\(default)\LogPath.
Found Parameter: LogSize Value 1024.
Found Parameter: LogSize Value 1024.
Trying to connect to Sql Server using windows authentication...
Sql version: Major: 11, Minor: 0, Build 3000.
Sql version is acceptable.
Validating parameters...
DbName LcsLog validated.
SqlFilePath C:\Program Files\Common Files\Microsoft Lync Server 2013\DbSetup validated.
DbFileBase LcsLog validated.
DbPath E:\CsData\ArchivingStore\(default)\DbPath validated.
Effective database Path: \\\E$\CsData\ArchivingStore\(default)\DbPath.
LogPath F:\CsData\ArchivingStore\(default)\LogPath validated.
Effective Log Path: \\\F$\CsData\ArchivingStore\(default)\LogPath.
Checking state for database LcsLog.
Checking state for database LcsLog.
Checking state for database LcsLog.
State of database LcsLog is detached.
Attaching database LcsLog from Data Path \\\E$\CsData\ArchivingStore\(default)\DbPath, Log Path \\\F$\CsData\ArchivingStore\(default)\LogPath.
The operation failed because of missing file '\\\E$\CsData\ArchivingStore\(default)\DbPath\LcsLog.mdf'
Attaching database failed because one of the files not found. The database will be created.
State of database LcsLog is DbState_DoesNotExist.
Creating database LcsLog from scratch. Data File Path = E:\CsData\ArchivingStore\(default)\DbPath, Log File Path= F:\CsData\ArchivingStore\(default)\LogPath.
Clean installing database LcsLog.
Setting the database LcsLog to restricted mode.
Database LcsLog set to mode Restricted.
Setting database options.
Creating objects from dbcommon.sql.
Creating database objects.
Executing ArchDb.sql...
Updating database roles.
Setting owner for database LcsLog to sa.
Exception Stack:
Type: Microsoft.SqlServer.Management.Smo.FailedOperationException, Message: Set owner failed for Database 'LcsLog'.
Type: Microsoft.SqlServer.Management.Smo.SmoException, Message: An exception occurred in SMO.
Type: System.ArgumentException, Message: The login 'sa' does not exist on this server.

I hope it will resolve the issues.

Anand S

Friday, August 1, 2014

Domain Join Error "Changing the Primary Domain DNS name of this computer tofailed error"

Hi All Readers,
I am working on a Active Directory migration project from Windows 2003 R2 Active Directory to 2008 R2 Active Directory fir multiple sites.
After I completed my migration project I was noticed that below error whenever I was trying to add a PC/laptop/Server to the domain, but it successfully adds to the domain.

But this error is very critical because when we add a duplicate name it won't give us the duplicate name errors simply it over-writes the existing host name which makes lot of issues.
I faced this critical error which makes over-writes the host names in the domain when you join.
For example: Already you had a host name called as in the Domain.
When you try to add the another host name called as PC in the Domain, it doesn't give you the duplicate name error on the network it does over-write the existing host name called as & it will add the new host name into the domain.

Host name which got over-written will get removed from the domain. I faced this issue in my project. My DPM host name got removed from the Domain & new host name got joined into the domain which halted my backups for one day.

Final Resolution is as follows:
You need to start the dns console on the DC & drop down the domain name.
Select the _msdcs when you click on _msdcs it will show the Name Server's list on the right hand side.
You need to add the Domain Naming Master under the _msdcs or add all the domain controllers which you had.

After you add the Name server's try joining the PC OR Laptop OR Server to the domain which is successfully joins it.
I hope this will resolve your issue.
Anand S

Sunday, June 22, 2014

Combined Exchange 2010 Hub Transport/CAS Role installation failed due to IP v6 is not enabled

Hello Readers

When I was installing combined Exchange 2010 HUB Transport and Client Access roles on Windows 2008 R2 SP1 got failed & given below error

Reason for Failed : IP v6 is not checked in the Lan connection.

Resolution : Simply check IP v6 in Lan connection and re-run the setup it should install successfully.

Anand S

Thursday, November 14, 2013

How to Uninstall Exchange Server 2010 mailbox Server Role

How to Uninstall Exchange Server 2010 mailbox Server Role

In my case I had DAG with 2 Mailbox Server Roles Installed

1) You can complete this step by going into the Organization Configuration - Mailbox - 
     Select Database Management Tab - Under Work Pane it will show the DBs which are added into the DAG. Right Click & select remove the Database & click remove - It will remove the Database membership from DAG
2) You can complete this step by going into the Organization Configuration - Mailbox - 
     Select Database Availability Groups Tab - Right Click properties of DAG name - 
     Click on Manage Membership Tab - Here you can remove the Member Servers which you want to        uninstall the mailbox servers. Select the Server & Click Delete. Process will get completed.
3) Now Delete the DAG name under DAG Group TAB. Here the DAG is deleted.
4) Now you go to Add or Remove Programs & select Microsft Exchange Server 2010. Click Uninstall.

It will show below window;

Uncheck the Server Role which you need to Uninstall & uncheck Management Tools as shown above.
Click Next it will check the Readiness Check.

Need to close MMC and EMC to prevent errors otherwise errors will show up for uninstall.

Here Exchange 2010 Mailbox Server Role is Uninstalled.

Thursday, November 7, 2013

Check out how many users or computers are authenticated in a given DC

Check out how many users or computers are authenticated in a given DC

Click Start, type powershell in the search box on the Start Menu, right-click the Windows PowerShell icon, and then click Run Windows PowerShell as administrator. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue

Run the script in the Windows PowerShell Console, You can type the command Get-Help