Outlook 2016

We have Exchange 2010, and everything appears to be normal for all outlook clients except Outlook 2016.

We are able to get the client to connect normally, and it works for a few days, but every time, and after a few days (sometimes a week or a little more) the 2016 client stops being able to update the server.

Outlook 2016 still retrieves mail, but if you delete or move a message, it only happens on the client. OWA or phones never get the changes, and after some time, the change will revert when the client syncs with the server again. Same thing with calendar entries. You can update something, but it will never show up in OWA, and eventually will revert, as if you never did it.

Environment is Exchange 2010 on Server 2008R2
Windows 10 clients connected via VPN
Autoconfig passes tests
Current patches and updates on both the server and workstations.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

JohnBusiness Consultant (Owner)Commented:
Try going back to Office 2013.  At one client, we were told that Outlook 2016 needed a registry patch to work properly with the hosted Exchange service (I cannot verify this). We changed back to Office 2013 and that is working fine.

You may need to wait a bit before Outlook 2016 gets patched.
Mark BillExchange, AD, SQL, VMware, HPE, 3PAR, FUD, Anti MS Tekhnet, Pro EE, #1Commented:
lol outlook 2016 dear lord. not already.

Office 2013 all day until Office 2016 SP1 is available, 6 months at least usually.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Mark BillExchange, AD, SQL, VMware, HPE, 3PAR, FUD, Anti MS Tekhnet, Pro EE, #1Commented:
Pretty sure the changes will take effect if you remove the setting "cached exchange mode" from one of the outlook 2016 profiles.

Why this is happening is another story.
Big Business Goals? Which KPIs Will Help You

The most successful MSPs rely on metrics – known as key performance indicators (KPIs) – for making informed decisions that help their businesses thrive, rather than just survive. This eBook provides an overview of the most important KPIs used by top MSPs.

DrPingAuthor Commented:
All previous versions of Outlook work normally.

2016 works normally the first few days, but once it's broke... even recreating the profile will not resolve the issue.

Removing cached mode is a good idea, and I bet you're right it will fix updating the server :>)
However, several users have huge mail boxes, so I'm not sure their performance will be acceptable.
May have to look for that other story.

But I'll let you know about cached mode.
DrPingAuthor Commented:
Mark was right, that removing cached mode now updates to the server, but it's unbearably slow.

The affected PC's were purchased with Office 2016 OEM.

No Downgrade rights.
DrPingAuthor Commented:
Turns out it wasn't an Outlook problem at all. Repaired the mailbox in Exchange and all is well.
DrPingAuthor Commented:
Ran a mailbox repair on the exchange server fised it.
DrPingAuthor Commented:
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.