Office 2016 Hangs When doing a Save-As

Office 2016 (latest build) hangs when pressing save as. I've opened a case with Microsoft and they aren't much help but when my PC (Windows 10 and Server 2016) users try to save as Word, Excel, PowerPoint takes 30seconds to 5 minutes to display the save-as dialogue.

At first thought it was a network issue so I saved a .pptx file to the desktop, opened it, and tried a save-as with the same result. Has anyone experienced an issue like this?
David MundtDirector of Information TechnologyAsked:
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Jamie GarrochSenior Technical Consultant at BrightCarbonCommented:
Could you include the version because different users on different release channels have different versions on different days. Such is life with O365 ;-) I'm using Version 1901, Build 11231.20080 and haven't experienced this issue.

Addendum : just updated to 1901 / 11231.20120
Does this happen with all files? Or only specific files?
David MundtDirector of Information TechnologyAuthor Commented:
Office 2016 1808 (Build 10730.20264)

Win 10 Ver 1803 (OS Build 17134.523)

I've even forced a PC to install 1812 (Build 11126.20266) with no success

This issue happens with any Office Doc... Even happens with a blank doc saved to the desktop
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Oh, and it's all users. I just saw that.

Sure sounds like something that might be version specific. Hm...
Are you blocking access to the internet or hiding behind a proxy?
Recent versions of Office are geared up for Office 365 etc. and will try to connect to stuff like OneDrive every time you try to save as. if it's being blocked it will hang until the attempt times out.
David MundtDirector of Information TechnologyAuthor Commented:
nothing is being blocked... We all have OneDrive and SharePoint available as a save-as location. I should mention this issue does not happen on my Macs but the save as process with a mac is entirely different.
A couple of suggestions --

This one is from a colleague: I'd suggest that they disconnect from the network, disable antivirus/antimalware and also anything that's doing auto-backups or synching to see if that has an effect.  Not a solution but it might point the BlameFinger in the right direction.

This one is from a contact at Microsoft: Please have the users send a frown when this occurs. (I know it seems like a blowoff suggestion, and I know it doesn't help your immediate situation, but I can tell you from experience that this is the best way to get bugs and issues in front of the people who can research and fix them.)
David MundtDirector of Information TechnologyAuthor Commented:
the plot thickens... my users are reporting lost data over the past week because Office Apps are not alerting them someone is working in a file when opening it. They save their changes which get overwritten when the person that had the file open when they opened it saves the file.

I've got cases open with Office 365 Support but they don't seem to have any answers...
I'd just like to re-encourage you to ask your users to send a frown when this happens. (I know, I know, it seems lame. But hey, my contact was asking for confirmation if you'd sent a frown, so at least they're looking for it!)
Do you have offline files or sync enabled or something along those lines?
David MundtDirector of Information TechnologyAuthor Commented:
I discovered a GPO for Office Templates that pointed to a location that did not exist. Removed the GPO and the issue was resolved

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Niiiice. Thank you for following up. I'm sure this will help someone in future.
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