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Windows 8.1 Outlook 2013 MRXSMB 50

Hello,

I have multiple users running Windows 8.1 and Outlook 2013 32bit. We use cached-exchange mode and each user has a series of PST files stored on a network share.

I am seeing a number of mrxsmb 50 warnings in the event logs, and the end user's Outlook crashes when these events happen.

This is strictly an issue with Outlook 2013 and Windows 8.1, Clients using Windows 7 and Outlook 2013 are fine, as well as clients running Windows 8.1 with Outlook 2007.

David Johnson, CD

This is a networking issue and Microsoft does not recommend that .pst files are on file shares they should be local. Why are not all the emails inside of exchange?

Nick M

ASKER

I realize that PST are not recommended to be on a network share, however realistically I would say 99% of people store them there. The issue is specific to Windows 8.1 clients with Outlook 2013. Like I said previously the issue doesn't occur when you use Outlook 2007.

VB ITS

Do you have network drives mapped via Group Policy Preferences, and are the PST files stored on one of these mapped drives?

If the answer is yes to the above, are these GPP drive maps set to Replace?

Nick M

ASKER

Yes, I do have the drives mapped via GPP and replace.

I installed this patch last night, and hoping it will solve the issue.

http://support.microsoft.com/kb/2732673

ASKER CERTIFIED SOLUTION

VB ITS

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Nick M

ASKER

By changing the drive in question to Update instead of replace, the issue seems to be resolved. Thank you!

VB ITS

Glad I could help!

Nick M

ASKER

I am having this issue again with a new wave of Windows 8.1 machines. I have tried changing the GPO drive mapping to Update and it is still occurring. Any thoughts?