Exchange 2013 SP1 Setup


I installed Exchange2013 on my server and domain.
I am able to send and receive emails normally whether internally or externally.

I am being able to setup mobile phones using Outlook app on the mobile (Android /IOS) and it works without a problem.

Now my "real" problem is on the desktops.
If the PC is joined to the domain ,then setting it up is very simple as Outlook detects everything.Next/Next / Finish and all is set.
If the PC is NOT joined to the PC, then if It has Office 2013 then it works by using proxy using https and using the msstd "thing".

If the PC is NOT joined to the PC and it has office 2016 It fails no matter what I try. Even though during the setup it says that the configuration has to be used over the web and I allow it...then few minutes later it fails...

Please Help !!
Pierre AmmounIT ConsultantAsked:
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Jeff GloverSr. Systems AdministratorCommented:
Have you published Autodiscover records? Office 2016 requires those for connection.
Jason CrawfordTransport NinjaCommented:
Try running an ExRCA test here -  Select the option for 'Outlook Autodiscover'
SP1 is 3 years old
Upgrade to the latest or N-1 CU and report back with results.
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Valentina PerezExchange ServersCommented:
Hi Pierre,

In Outlook 2016, the autodiscover process is automatically using your external DNS,

Have you created the external records in DNS?

Pierre AmmounIT ConsultantAuthor Commented:
Dear Ronin

Is it a "simple" process to update to the latest CU ? are there any known pitfalls ?
in majority of the cases - yes.
Make sure to follow the steps:
1. Restart the server before applying CU.
2. Open a PS console as Administrator (right-click -> Run as Administrator)
3. Execute Set-ExecutionPolicy Unrestricted
4. Navigate to the location of the CU and run setup.

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