Have you seen this?
This is a weird one, we have a teacher who opens up an excel spreadsheet and then gets his class to open it as well. This worked fine on server 2008r2, but since upgrading to server 2012 r2 things have gone massively slow. It can take 5 minutes for the document to open up. It does seem quicker if the teacher closes the document first before kids open it, but that isn't an acceptable solution. Has anyone else come across similar problems on 2012 r2?
Also could this be a data de duplication issue?
Any ideas on how to troubleshoot and fix this will be appreciated. If I open the file when the teacher has it open it takes ages, and will give me the this file is locked, and allow me to open a read only copy.
AngryTechnician (3rd December 2013)
First, install the latest service pack on your system. Also get the latest Cumulative Update for Excel and the operating system updates.
You may also require adding the OpLocks registry keys to the client machines and rebooting the system. Hope it works for you.
For more info check: The Definitive 'Locked File' Post (updated 6/1/2012) - The Microsoft Excel Support Team Blog - Site Home - TechNet Blogs
Might be worth checking if the user has the Office File authentication addin, really slows down access to files on a network share, remove and all shall be well in the world again.
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