Installing Forefront UAG Service Pack 4 Destroys Existing Configuration

Microsoft TMG and UAG ninja Gregg O’Brien walks us through how he resolved a recent critical customer issue with UAG. Recently, Service Pack 4 for Unified Access Gateway 2010 was released. Some customers I have worked with have experienced a problem when installing this Service Pack.  The observed issues is that the installation erases any…


System Center Configuration Manager 2012 – OS Deployment Fails with Error 0x80004005

Some administrators may experience an error when trying to deploy an OS image using System Center Configuration Manager. Upon attempting to deploy the OS, a generic error is returned that does not indicate a specific cause, simply “Failed to Run Task Sequence – An error occurred while starting the task sequence. 0x80004005”. Similar to this:…


How To Use the Microsoft Authenticator App for Windows Phone to Enable Two-Factor Authentication on Facebook

Our old favourite PFE Gregg O’Brien runs through using the Microsoft Authenticator app for Windows Phone to make his social networking experience more secure. If you are like me, social media is a heavily-used feature of technology in your daily life. I use social media to keep in touch with friends and family, and also…


The Ghosts that Haunt Hyper-V

Summary:  If you’re trying to bind a virtual switch to a wired or wireless network within your Hyper-V environment and get some pesky error that prevents you from doing so, you may have an issue with ghosted network adapters lingering within your system.  Fortunately, our resident Hyper-V ghostbuster Gregg O’Brien, a Microsoft Premier Field Engineer…


ADCS: Manually Created CDP Extensions Cause CRL Look-up Failures

Summary: Gregg O’Brien, a Microsoft Premier Field Engineer from Canada, makes a case for not throwing sand in your face and correct zipper placement when dealing with a Certificate Revocation List Distribution Point (CDP) in Microsoft Active Directory Certificate Services.  The moral of his story:  make sure your CDPs are properly formatted or you’ll see…


Hyper-V: Virtual Machines Freeze at 10% When Starting Up

Summary: Gregg O’Brien, Microsoft Premier Field Engineer from Canada, faces a problem with some Hyper-V guests, and troubleshoots it. Spoiler: He fixes it. Recently I was working in my lab to test a configuration I was working on with a customer. I opened the Hyper-V Management Console and started a series of virtual machines. The…


Why Windows Server 2012 Parity Storage Spaces Might Perform Slowly

  Summary: Gregg O’Brien, a Microsoft Premier Field Engineer from Canada, walks us through some lessons he learned when testing Storage Spaces, a new feature in Windows Server 2012 that’s meant to provide enterprise-level storage performance, flexibility, and scale. The moral of his story:  for heavy workloads requiring high speed, random I/O and the best…


How to Configure DirectAccess in Windows Server 2012 to Work with an External Hardware Load Balancer

Summary:  Gregg O’Brien, a Microsoft Premier Field Engineer from Canada, provides insight and walks us through how to configure DirectAccess in Windows Server 2012 to work with an External Hardware Load Balancer. DirectAccess is quickly becoming a popular solution for providing remote access to users, especially since the release of Windows Server 2012.   DirectAccess can…


Virtual Machine Network Monitoring the Easy Way, with Hyper-V in Windows Server 2012

Gregg O’Brien is a Microsoft Premier Field Engineer from Canada, where French people are readily available. The Challenge: Capturing Traffic Across VMs There comes a point in the life of every server administrator where they must take a look at what is happening on the network. Complex multi-tiered systems and fancy network gear can often…


Getting started with IPv6

This article has been written by Gregg O’Brien, who works as a Premier Field Engineer in Microsoft Canada. He presents this quick list of resources for getting acquainted with IPv6. It’s no secret to most IT professionals by now that we are quickly exhausting all IPv4 address spaces and will eventually need to move away…