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It gives the error "There was a problem connecting to this app". Just doing a quick Google search it looks like a widespread problem. I have a ticket open with MS but no answers yet.
It does work in the Outlook online app.
Using Classic Outlook on Windows for personal email, calendar, and contact management
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Had the same issue and this worked great for my client, he tried the new version of Outlook which is more OWA based, did not like it and reverted back to the standard desktop version, I am wondering if something did not reset properly and this is what caused his issue.
Reset the Office cache, it should fix the problem:
- Close Outlook
- Rename or Remove these two folders: %LOCALAPPDATA%\Microsoft\Office\16.0\wef %userprofile%\AppData\Local\Microsoft\Outlook\HubAppFileCache
Re-open Outlook and click the "To-Do" shortcut, and it should open without issue.
This fixed a user we had. Thank you for this.
THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Hi - after struggling for several weeks trying to find a solution on multiple computers, resetting the cache with the steps above fixed the issue. Thank you.
Next level thank you its working for me also