Free/busy information unavailable in Outlook 2013 on Windows 8.1 on Exchange 2010

Hi,
This has been discussed a lot inf forums but unfortunately having followed all the guides I have found, I can't resolve it. I am the only user with the issue.
I have primarily followed https://social.technet.microsoft.com/Forums/office/en-US/ee9e1b89-bea1-48aa-9008-cae205c5e816/forum-faq-why-cant-i-retrieve-freebusy-information?forum=outlook
including recreating my profile, installing http://support.microsoft.com/kb/2850061/en-us via
Ofifce 2013 SP1, verifiying the funtion works through OWA etc etc.
I have the full version of Office 2013 Pro not the Click to Run version. It seems to be the Outlook client itself not the Exchange server. I am at a loss what to do next... please help! :)

Hi,
Please also enable Automatic Replies in Outlook, check if this feature works well.
Since the issue only occurs to one client and it works on OWA, I suggest you try these steps below to troubleshoot the issue:
1. Start Outlook in Safe Mode. It is always a helpful method to troubleshoot Outlook client issues, when in Safe Mode, Outlook doesn't load with add-ins, we can check if this issue persists when add-ins are disabled:
Press Win + R, type "outlook.exe /safe" in the blank box, press Enter.
If there's no issue in Safe Mode that you can find free/busy information again, disable the suspicious add-ins to verify which one caused the problem.
2. Perform a clean boot. This helps determine whether the issue is related to some background programs, any 3rd-party programs will be disabled. If the issue doesn't occur in Clean Boot, then we may suspect it's related to some 3rd-party programs, the detailed
steps can be found in this link below:
http://support.microsoft.com/kb/929135
Regards,
Melon Chen
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.

Similar Messages

Out of office/free busy not working for Outlook 2013

Hi! I have a user on our network that cannot use Out of office or see free/busy information in meeting requests. We have hundreds of working 2010 clients but this one is 2013 and NOT a member of our domain. They are connected to exchange
and can do anything except the above. When I do a test of email autoconfiguration it just fails. DNS resolution is working fine but it can't connect to the server for these two functions only. Any articles I can find assume the user is remote
and outside the network but he is connected internally. Any ideas?
Thanks!

Hi,
Please switch to Outlook 2010 client and login OWA to check this issue.
The Microsoft Exchange Server 2010 Availability service makes free/busy information available to Outlook client. Then Outlook uses the Exchange Server 2010 Autodiscover service to obtain the URL of the Availability service. As you
mentioned, it failed to do a test of email autoconfiguration. So I suggest the following methods for troubleshooting
Please switch to Outlook 2010 client and login OWA to check this issue.
Have you configured
Autodiscover Service for Internet Access?
Use Test-OutlookWebServices cmdlet to
verify that the Autodiscover service settings for Outlook clients are configured correctly.
Blog for
reference to troubleshooting Autodiscover.
Best Regards.
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]
Lynn-Li
TechNet Community Support

Outlook 2013 Category view not updating after Exchange 2010 SP3 RU3

After updating to Exchange 2010 SP3 RU3 last night, users who use categories view in Outlook 2013 are complaining that the view does not update. The alert is received in the notification area and the unread message count next to Inbox updates appropriately.
The view can be force updated by switching between All and Unread, by using Reset View, or closing and opening Outlook. It seems anything that forces a 'redraw' of the view will update it - except for the actual reception of email. I easily replicated
this issue. For reference:
Exchange 2010 SP3 RU3
Windows 7 x64 Ent
Outlook 2013 (15.0.4551.1004) 32-bit
I do see that SP3 RU4 has been released, however the only change listed is a security patch.
Thank you for any ideas.

Hi, Everyone –
This has been a known issue for a very long time – we have people at our workplace that are very disappointed since a feature as great as categorizing email (not using tasks) has become broken and has not even been considered to be fixed for
over half a year. It was not fixed in the updates for Patch Tuesday this week.
I would like to confirm that this is an issue with Outlook 2010 and 2013 when running the latest Exchange 2010 and there is NO FIX
– I have scoured the internet for a solution – all proposed "textbook" solutions do not work and I am positive that the issue can be recreated; however, everyone from Microsoft does not mention trying to recreate the issue at all.
The workaround of creating a rule to send new emails to a category could break other pre-existing rules and cause more frustration and wasted time for users/IT before and after the issue is fixed.
Please fix this issue sooner than later, as the Categories view is completely broken and unusable at this point in time.
Regards,
IT Helper

Outlook 2013 asks for credentials connecting to Exchange 2010 multiple times

I'm having a problem with Outlook 2013 asking for my credentials a few times a day for no apparent reason. Some info on my setup...
CLIENT
Windows 7 Professional SP1 64 bit, fully patched
Office 2013 Pro Plus 32 bit, fully patched (has there even been any patches released yet?)
Outlook auto-configured to Exchange during setup.
Online Archive setup with server
Connected via gigabit ethernet on same network and domain as Exchange server.
SERVER
Exchange 2010 SP2, fully patched.
One server, holds all roles.
I have zero clue as to why I'm getting popped for credentials. This did not happen prior to my upgrade to Office 2013. I was previously using Office 2007 Pro Plus.
My credentials are always accepted, never a problem putting them in.
Thanks in advance!

I have been testing and testing also for days, then waiting for any responses to other people's questions on other places as well.
After some time started my own tries again.
Now I fixed my issue - don't fully comprehend it. But anyway here comes the solution that worked for me (and hopefully for more of y'all)...
Go to the Exchange account from within Outlook, click special settings, tab connection. Open up the button proxy settings, UNtick options 3 and 4 (connections with HTTP/then TCP/IP). Make sure to UNtick both.
Press OK, Hit Save and OK again. Press NEXT and close the screens.
Logout from Outlook. LOG OFF your RDP session if you're in one. Restart the RDP session after some 15 seconds. Or start Outlook if you were only in Outlook.
My issue was then solved.

Problems with Outlook 2013 and Windows 8.1 with Exchange 2013

Hello Guys,
I just got started with testing Exchange 2013. My lab consists of 2 Exchange 2013 Servers, the Installation Media is the Exchange 2013 SP1 from MSDN, Server 2012 R2 and 2 Windows 8.1 Clients with Office 2013 SP 1 with all updates installed. I have configured
some mailboxes in Exchange and I want now to configure Outlook. So at the initial startup Outlook displays the correct Name and Mail Address. When I click next I make it to Logging on the mail server and then I am getting the Error : The connection to Microsoft
Exchange is unavailable. Your Network adapter does not have a default Gateway. All servers are in the network 192.168.5.0 /24. Any suggestions how can I fix this problem ?
Thank you

Hi there and thanks for Posting!
You can correct the issue by disabling outlook connection optimism.
Full details can be found from link below.
http://blogs.technet.com/b/rmilne/archive/2014/03/27/outlook-unable-to-connect-to-exchange-_1320_default-gateway-not-found.aspx
Happy Testing :)
Farhad

No Free/busy information could be retrieved in outlook 2013

I Microsoft,
Avionyx as a company has an account in Microsoft Exchage Online(365) from this side the calendar free/busy information works perfect via OWA.
Avionyx is facing an issue in office outlook 2013, we have office outlook 2007 and 2010 and the free/busy information always has worked fine, but when I setup the users in office outlook 2013 the calendar free/busy information starts working ok around 2
to 3 weeks, then out of the blue the free busy information stops working and I can not do anything to fix it unless I remove the users and create it again since the beginning which is really annoying. Is there an issue with this outlook is there
a way a can fix the free/busy information in office outlook 2013??
Freddy Moya
Avionyx

Hi,
Please try reassigning the permission to the user, check if that would help:
Calendar -> Properties -> Permissions
We suggest you choose Reviewer, but you can also try others.
If this is not the case, test in cleanfreebusy mode to check if the issue persists:
Press Win + R and type "outlook.exe /cleanfreebusy" in the blank box, then press Enter.
If the issue only occurs to one specific account, we may consider to delete that account mailbox on Exchange and create a new one (Backup user’s data whether in local machine or server site), then recreate the profile and setup the account on the Client
to test if the same issue persists:
http://technet.microsoft.com/en-us/library/jj150580(v=exchg.150).aspx
http://office.microsoft.com/en-in/support/set-up-email-in-outlook-2010-or-outlook-2013-HA102823161.aspx
I hope my suggestion is helpful.
Regards.
Melon Chen
TechNet Community Support

Exchange/Outlook 2013 No free/busy information could be retrieved

We are getting a problem for certain users where their Free/Busy info is not visible in the Scheduling Assistant.
HOWEVER - the same user's calendar can be viewed as a Shared Calendar without a problem.
I believe this has been working previously and has now stopped.
It is affecting Mac & PC user the same and is also apparent in OWA.
Please help as typically this is affecting our VIPs.
Thanks

Hi,
According to your description, I noticed that the free/busy information also couldn’t be retrieved in OWA. Please confirm your Exchange version and double check whether all users can’t use scheduling assistant to view free/busy information.
In Outlook client, please run Test E-mail AutoConfiguration tool to test the Autodiscover service and Availability service URL:
please open Outlook - press CTRL key - right click on the Outlook icon from right bottom corner taskbar - Test Email AutoConfiguration. Put your email address - uncheck use guessmart and secure guessmart authentication - click Test to check your Autodiscover
service.
In Results tab, please get the Availability service URL. Then access it in Internet Explorer in your local machine, and check whether a proper XML file can be returned.
Regards,
Winnie Liang
TechNet Community Support

[Forum FAQ] Why can't I retrieve Free/Busy information

Free/Busy information is a feature of Microsoft Outlook that allows you to see when others are free or busy so that you can efficiently schedule meetings. You can use Microsoft Outlook to publish Free/Busy information to any server
your and your coworkers have read/write access to. However, in some cases you’ll notice that you can’t retrieve Free/Busy information correctly from Outlook. You can try the below methods to troubleshoot and get the Free/Busy information again.
Since most users who often use this feature are using Exchange, all the information in this content is only based on Exchange.
General troubleshooting methods:
Method 1: Start Outlook using the ‘/cleanfreebusy’ command line switch
Method 2: Logon OWA to see if the Free/Busy information shows correctly
Method 3: Check the user’s Permission Level when only one user’s Free/Busy information can’t be displayed
Other causes
Autodiscover has not been setup correctly
Updates
Here are the detailed steps and explanation of each method and cause.
Method 1: Start Outlook using the ‘/cleanfreebusy’ command line switch
With the ‘/cleanfreebusy’ switch, it will clear and regenerate free/busy information when Outlook starts, sometimes this process fixes the problem that Free/Busy information doesn’t display correctly, and this is always the first thing we should try when
we can’t get the Free/Busy information from Outlook.
This switch can only be used when you are able to connect to your Microsoft Exchange server.
To start Outlook using the switch, we can press Win Key +
R to start Run, type ‘outlook.exe /cleanfreebusy’ in the blank box, then press
Enter.
Please note since Outlook 2013 only uses the availability service which is connected to Autodiscover, the command line switch ‘/cleanfreebusy’ has been removed as well as the associated code so that Outlook 2013 will not recognize this
command.
Method 2: Logon OWA to see if the Free/Busy information shows correctly
If you are using Cached Exchange Mode in Outlook and having trouble getting the Free/Busy information, please logon OWA, or switch to Online Mode to see if the Free/Busy information shows correctly.
If the Free/Busy information shows correctly on OWA or in Online Mode, this problem may be caused by the Outlook Data File(.ost) corruption, which leads to the sync failure. Therefore we should exist Outlook, browse to the Data File and rename it to “.old”.
The next time Outlook starts, it will regenerate a Data File to sync and we can check if the Free/Busy information can be retrieved.
The location of the Data File can be found from File tab ->
Account Settings -> Account Settings ->
Data Files tab. (Outlook 2010 and Outlook 2013)
Or Tools menu -> Options ->
Mail Setup tab -> E-mail Account -> Account Settings window ->
Data Files tab. (Outlook 2007)
If on OWA it displays fine but doesn’t show the information correctly in neither Cached Exchange Mode nor Online Mode, it may be caused by the firewall or anti-virus settings, disable them to verify if they caused the problem.
Method 3: Check the user’s Permission Level when only one user’s Free/Busy information can’t be displayed
When a user has set his Calendar Permission to None, other people will not be able to see his Free/Busy information. When we notice that we can get most people’s Free/Busy information but fail to get one specific person’s, please consider
to check his Calendar Permission:
In that user’s Outlook, right click on his default Calendar, click Properties, select
Permissions tab.
We need to at least switch the Permission to Free/Busy time to get his Free/Busy information correctly.
Other cause 1: Autodiscover has not been setup correctly
From Outlook 2007, Outlook uses Autodiscover to get the Free/Busy information. Once Autodiscover has not been configured properly, the Free/Busy information may not display correctly. If you are also seeing issues with Out of Office assistant, we may assume
that you haven’t correctly setup Autodiscover, since these two symptoms are common when Autodiscover is not configured correctly.
To verify that, please test Outlook Autodiscover Connectivity:
http://technet.microsoft.com/en-us/library/bb123573.aspx
We can also learn Configure Exchange Services for the Autodiscover Service from:
http://technet.microsoft.com/en-us/library/bb201695.aspx
Since Autodiscover Service is more Exchange related, we need to seek Exchange support and post the question in Exchange forum:
http://social.technet.microsoft.com/Forums/exchange/en-US/home?category=exchangeserver
Other cause 2: Updates
Although Updates from Microsoft do no harm to the system for most of the time, the updates sometimes can mess things up.
Outlook 2013 November 2013 security update once became the culprit that caused some users not able to retrieve Free/Busy information from calendar scheduling. This occurs because Autodiscover fails for Exchange 2007 configurations. So in fact, this also
refers to the previous reason, Autodiscover is corrupted.
The fix for the issue above has been released:
http://support.microsoft.com/kb/2850061/en-us
Once you have some issues after updating and doubt it’s an update issue, you can always come to our forum to ask if there’s a recent update which causes the problem, we will be happy to support you. If a fix hasn’t been released yet, we suggest you uninstall
the suspicious ones from Control Panel -> Programs and Features ->
View installed updates to verify which caused the problem, also as a workaround.
Summary
The reason that we can’t get the correct Free/Busy information can vary. If you find it doesn’t work even after several general troubleshooting steps, please consider it’s Autodiscover related. For anyone who comes up against the issue that Free/Busy information
can’t be retrieved, please feel free to visit Outlook IT Pro Discussions from the URL:
http://social.technet.microsoft.com/Forums/office/en-US/home?forum=outlook, we will be glad to help you.
Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.

You should be charged, but that confirms the account. Same behavior with the app store...have to give login info evem for free downloads.

Outlook 2013 with Office365 exchange Scheduling assistant not retrieving free/busy information

Hi, we are using Outlook 2013 with Office365 Exchange and when using the Scheduling assistant in Outlook users are seeing "No Information. No free/busy information could be retrieved". The scheduling assistant works fine in OWA.
I have spent time trying to find an answer on the web but most answers involve different exchange variations.
Mark

Hi,
Since the problem only exists on Outlook Client, we can try running Outlook with the switch "/cleanfreebusy", this will clear and regenerate free/busy information:
outlook.exe /cleanfreebusyin the blank box, then press Enter.
You can also switch between Online and Cached Mode to check if there's a difference.
Regards,
Melon Chen
TechNet Community Support

No Free/Busy Information for Exchange 2010 users in Outlook 2010 client, 2010 OWA shows this information fine

I have looked for hours and hours on Google and this web site for this type of issue and nothing seems to help.
Problem:
On my new Windows 2008 R2 /Exchange 2010 server with IIS7 installed, I can use Outlook 2010 client to login and send and receive e-mail but when I try to busy search internal Exchange users I get no information (cross-hatch), but the sender of the Meeting Request
can see their own free/busy information fine. And OWA users can see free/busy information fine, as can Outlook 2003 client users against this Exchange 2010 server when logged in.
I don't know if I have a certificate problem with regard to IIS7 or Exchange 2010, I did not create my own certificate , it is just what was installed by default when I installed and configured Win2K8 server, IIS7 and Exchange.
On the Windows 7 workstations with Outlook 2010 client, I am not logging into the Exchange 2010 server DNS domain, if that makes any difference. On these workstations I can ping "autodiscover.my.exchange.server.com" and my.exchange.server.com
with no problem. I even used this Microsoft KB to install a new _autodiscover dns entry, but it did not help :
When I turn on logging on my Outlook 2010 client, I see this in my C:\Users\Administrator\AppData\Local\Temp\1\outlook logging\20131208-135658864-fb.log :
2013/12/08 13:56:58.864: Getting ASURL
2013/12/08 13:56:58.864: URL returned from cached autodiscover: blah blah
2013/12/08 13:56:58.864: Request to URL:
2013/12/08 13:56:58.864: Request action:
2013/12/08 13:56:58.864: Request XML: <?xml version="1.0"?>
2013/12/08 13:56:59.051: Request sent
2013/12/08 13:56:59.051: Response error code: 00000000
2013/12/08 13:56:59.051: HTTP status code: 0
2013/12/08 13:56:59.051: -------------------------------
2013/12/08 13:56:59.051: There is an error in request/response.
2013/12/08 13:56:59.051: XML response:
2013/12/08 13:56:59.051: -------------------------------
2013/12/08 13:56:59.051: Getting ASURL
2013/12/08 13:56:59.644: Failed to get ASURL. Error 8004010F
At an Exchange shell console I enter this command and get these results :
Exchnage Management Shell :
VERBOSE: Connecting to BPExchange2010.my.exchange.server.com
VERBOSE: Connected to BPExchange2010.my.exchange.server.com.
[PS] C:\Windows\system32>Test-OutlookWebServices -id:[email protected] -TargetAddress:[email protected]
ll.com
RunspaceId : c929eacd-d53c-49d7-8532-c4b74e61b8be
Id : 1019
Type : Information
Message : A valid Autodiscover service connection point was found. The Autodiscover URL on this object is
Type : Success
Message : [Server] Successfully contacted the UM service at https://bpexchange2010.my.exchange.server.com/ews/exchan
ge.asmx. The elapsed time was 234 milliseconds.
[PS] C:\Windows\system32>
** Also frequently when I log into Outlook 2010 client and start to send a meeting request , I get the Security Alert dialog :
autodiscover.my.exchange.server.com
Information you exchange with this site cannot be viewed or changed by others. However, there is a problem with the site's security certificate.
Green Check Mark : The security cerficate is from a trusted certifying authority
Green Check Mark: The security certificate date is valid
Red X : The name on the security certificate is invalid or does not match the name of the site.
Do you want to proceed ? . I either import the certificate or click YES, but does not help this issue.
NOTE: Each user that shows as NO INFORMATION cross-hatch, these users have appointments and have logged into outlook before.
When I do this autodiscover url from a Windows 7 pc with outlook 2010 I get :
This XML file does not appear to have any style information associated with it. The document tree is shown below.
<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006">
<Response>
<Error Time="14:47:01.5656198" Id="401440650">
<ErrorCode>600</ErrorCode>
<Message>Invalid Request</Message>
<DebugData/>
</Error>
</Response>
</Autodiscover>
Can anyone assist ? What am I missing ?
Thank You
NOTE: When will this go away. I had to strip out a lot of helpful information to post this. "Body text cannot contain images or links until we are able to verify your account."

Hi,
How many users encounter this issue, all users with Outlook 2010 or some specific users?
According to your post, the Error code 600 indicates that your Autodiscover service is working well. as for the certificate mismatch issue, we can also following the KB below to resolve it:
http://support.microsoft.com/kb/940726/en-us
The Free/Busy information in Exchange 2010 is using the Availability service to
retrieve it. Please directly access
https://mail.mydomain.ae/EWS/Exchange.asmx in IE and see whether a proper XML file is returned.
Or we can go to
https://testexchangeconnectivity.com and check MS Exchange Web Services Connectivity Tests.
Thanks,
Winnie Liang
TechNet Community Support

Any Fix / Update For Microsoft Office 2013 Free/Busy Information Issue

Any official update / fix regarding the Microsoft Office 2013 Free/Busy Information Issue? (not the workaround I found to uninstall KB2837618
and re-create profile).
Reference: http://helpdesk.missouristate.edu/news/two-microsoft-updates-cause-problems-with-outlook-2013
Thanks a lot,
Moshe

Refer to the solution which delivery by Hypocrit from another thread with the same topic.
http://social.technet.microsoft.com/Forums/en-US/827a12f0-c785-43df-a71f-0b21aeffa176/outlook-2013-freebusy-fails-after-updates?forum=officeitpro
I've copied the replies below:
"With mfcmapi open your Profile under the Profile->Show Profile
then double-click "Outlook" or how your Profile is named
then double-click "Microsoft Exchange"
then double-click your mailaddress (both) and remove PR_DELETED_FOLDERCOUNT with value SMTP: or correct them"
http://mfcmapi.codeplex.com/releases/view/101020
Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
More reference post:
http://social.technet.microsoft.com/Forums/en-US/a926f0b5-0e66-4f43-8ac3-50791df16154/microsoft-office-2013-freebusy-information-issue?forum=officeitp
Tony Chen
TechNet Community Support

Microsoft Office 2013 Free/Busy Information Issue

We have several users that cannot see the free/busy information of another user in their Outlook 2013 calendars. Creating a new Outlook profile for the user and repairing office solves the issue for a short period of time. Users are running Windows
8 64 bit, Windows 7 32bit and 64bit with Office 2013. Our Exchange server is 2010 version 14.03.0158.001. I have included screenshots of the issue.

I have been working with Microsoft on this issue. The patches below are suppose to fix this issue. We are still currently testing them.
32 Bit
====
KB Article Number(s): 2825652
Language: All (Global)
Platform: i386
Location:
http://hotfixv4.microsoft.com/Microsoft%20Outlook%202013/sp1/outlook2013kb2825652fullfilex86glb/15.0.4551.1511/free/471276_intl_i386_zip.exe
KB Article Number(s): 2837674
Language: All (Global)
Platform: i386
Location:
http://hotfixv4.microsoft.com/Microsoft%20Word%202013/sp1/word2013kb2837674fullfilex86glb/15.0.4551.1508/free/471263_intl_i386_zip.exe
KB Article Number(s): 2849994
Language: All (Global)
Platform: i386
Location:
http://hotfixv4.microsoft.com/Microsoft%20Office%202013/sp1/mso2013kb2849994fullfilex86glb/15.0.4551.1508/free/471241_intl_i386_zip.exe
The issue with Free / Busy and OOF not getting set would take 24-36 hours to start working once the patch is applied.

Free/busy information in 2007/2013 coexisitance

I'm in the process of migrating from a single server 2007 exchange environment to a multi server 2013 environment. I'm at the point where I want to move a small group of users to the 2013 serves to do some testing. The only issue holding that back
is anyone on the 2007 server cannot view free/busy information of a user on the 2013 servers. This does work when a 2013 tries to lookup a 2007 users free/busy information.
Anyone have any idea why that would be?

Hi,
Please check your Exchange 2007 Web service in CAS configurations. We need to set it with legacy.contoso.com. Just like:
Set-WebServicesVirtualDirectory –Identity “Exch07\EWS (Default Web Site)” -InternalUrl https://legacy.contoso.com/ews/exchange.asmx –ExternalUrl
https://legacy.contoso.com/EWS/Exchange.asmx
For more information about migrate from Exchange 2007 to Exchange 2013, please refer to:
Step-by-Step Exchange 2007 to 2013 Migration
http://blogs.technet.com/b/meamcs/archive/2013/07/25/part-3-step-by-step-exchange-2007-to-2013-migration.aspx
Thanks,
Winnie Liang
TechNet Community Support

Free Busy information not appearing correctly in Outlook

First some background:
For two of our Resource Mailboxes, we are having an issue where all times are showing outside of Work Hours (gray). The working hours for both of these rooms are set for 8-5, pst, just like all our other Resource Calendars. This occurs on all installed Outlook clients,
but does not occur through OWA (both logged in as the resource, and a standard user).
Things we've checked and confirmed are the same with a working resource:
Permissions for the Mailbox
Permissions for the Calendar
TimeZone Information
Work Week Information
Resource Policies
Steps we've taken to try and resolve the issue without affect:
Forcing a OAB update on Exchange and Locally
Changing Work Week/TimeZone
Changing Calendar share permissions
I'm a little lost at where to proceed next, I've got a mind to try and just kill our OAB and rebuild from scratch, but will talk that over with our Exchange Admin. I've done Compares on Get-Mailbox, Get-MailboxCalendarConfiguration, Get-MailboxCalendarFolder,
Get-MailboxFolder, Get-MailboxFolderPermission, Get-MailboxRegionalConfiguration and probably every other cmdlet one could run on a mailbox (except for probably exact the one I need).

Hi,
Do you mean the issue doesn’t happen when users view room’s free/busy information from Scheduling Assistant in OWA?
Please make sure the date and time zone are the same in Exchange server, Outlook clients settings, user local machines and Domain Controller. Also double confirm the work hours for these two room mailboxes are configured the same for 8:00AM to 5:00PM. Please
run the following command in Exchange server to check the calendar processing for these two problematic room mailboxes:
Get-CalendarProcessing Room1 | FL
Get-CalendarProcessing Room2 | FL
Regards,
Winnie Liang
TechNet Community Support

Free/Busy Info Unavailable in OWA & Outlook

When we try to add ONLY "User A" to meeting request using Outlook client/OWA, no free busy information could be retrieved. Other user try to add "User A" to meeting request also receive the same message.
However, when "User A" from her Outlook, she can able to view her free/busy
I'm using Outlook 2010 and running on Exchange 2010. I did ran my outlook testing, availability can be connected.
Please advice

Hi,
Please try Th3B0sS’s suggestion to check the autodiscover service and OOF, EWS service. We can open Outlook - press CTRL key - right click on the Outlook icon from right bottom corner taskbar -
Test Email AutoConfiguration. Put your email address - uncheck use guessmart and secure guessmart authentication - click Test to check your Autodiscover service. Please collect the information in the Results and Log tab.
Since the issue only happens to one specific user, please run the following shell to diagnose Availability service issues for an individual user:
Test-OutlookWebServices -Identity: [email protected]
Please note to run the script New-TestCasConnectivityUser.ps1 to create a test mailbox. For more information about it, please refer to the following article:
Diagnose Availability Service Issues
http://technet.microsoft.com/en-us/library/bb124805(v=exchg.141).aspx
Regards,
Winnie Liang
TechNet Community Support

Free/busy information unavailable in Outlook 2013 on Windows 8.1 on Exchange 2010

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