Author Archives: Gary Cooper

About Gary Cooper

I am a Senior Systems Architect for a small midwestern US consulting company (Horizons Consulting) and I currently am certified by Microsoft

Skype for Business mobile users can’t sign in when Modern Authentication/MFA is enabled

Recently, I have noticed the Skype for Business client prompting for credentials when it ties to connect to Exchange Web Services for mailboxes in Exchange Online (EXO).  The EXO tenant is configured for Modern Authentication (ADAL) and Azure Multi-Factor Authentication … Continue reading

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Change to Office365/Exchange Online PowerShell URL?

Are you trying to connect to Exchange Online and only seeing this error?                   WinRM cannot complete the operation. Well, Microsoft is reporting an outage right now and after a colleague opening … Continue reading

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Exchange 2013 CU8 Application Event Warning 1310 – Microsoft.Exchange.Security Assembly

I ran into a new issue that isn’t well documented publicly earlier this week.  I installed two new Exchange 2013 CU8 servers as “Hybrid” servers for an Office 365 integration deployment.  After configuring the servers, I noticed that none of the … Continue reading

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Microsoft Releases the Hybrid Migration Troubleshooter

Microsoft has introduced the all new Hybrid Migration Troubleshooter, which was first introduced during Microsoft Ignite in Chicago.  Why did they create this troubleshooter? The Hybrid style of Mailbox move is one of the most popular and complex types of migration strategies.  This … Continue reading

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Microsoft Ignite session catalog has been posted!

This morning, Microsoft announced the availability of the session catalog for Ignite, Microsoft’s new, premier enterprise technology event. This provides the first in-depth look at the hundreds of sessions that will be available across Office 365, SharePoint, Exchange, Lync and … Continue reading

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Installing .NET 3.5.1 on Windows 2012 – Error 0x800F081F

Recently, when trying to install Office 365 Dirsync, I ran into an issue with the installation of .NET 3.5.1 as a feature.  I received the error: Error: 0x800F081F The Source files could not be found Since this was a newly … Continue reading

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Exchange 2013 – Outlook Online Mode – Search Folders Break!

Outlook Online Mode breaks Search Folders in Exchange 2013 Continue reading

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