I have a client who connects via RDS to a handful of virtualized session host servers we host in our datacenter.
These session host servers have Office 2016 installed and Outlook is configured for each user to connect to the users Exchange 365 mailbox.
The users are experiencing poor performance in outlook which boils down to these three things:
- Outlook not responding, 'whiting out' and/or crashing when sending mail.
- Outlook not responding, 'whiting out' and/or crashing when navigating through folders and reading items.
- Regular warnings that 'Outlook is trying to retrieve data from the server'
The session host servers have an abundance of RAM and CPU allocated and are nowhere near capacity, so I can comfortably rule that out.
We've got some users using OWA at the moment to see if that is more stable and we've got our 365 provider looking into it on Microsoft's behalf, but I'm wondering if this is something that other people have experienced in this kind of environment or even at all when using Outlook 2016 and Exchange 365.
The issue has been ongoing for some time and It seems to be affecting all users. My client has already asked about the possibility of moving back to a hosted exchange solution, which I wish to try and avoid, so any help is greatly appreciated.