Office / Outlook 365 Authentication Couldn’t Be Completed, Blank page
We’ve had issues with Offce 365 running on MAC.
Outlook couldn’t be configured with Office 365. After entering email address we would get:
Connecting to Office 365
Authentication Couldn’t be completed
Try again
When Outlook was configured and not receiving emails, a window would mysteriously pop-up and close.
Attempting to open other office 365 programs like Word and Excel would open a blank white window.
Troubleshooting:
We removed outlook profile and recreated
We delete credentials in key chain
updated MAC OS
Done many other things to no avail.
But when we tried the MAC outside the office network (at home or over hotspot), everything worked fine.
Conclusion, the issue was network, we will be checking the Sonicwall firewall at the office and DHCP server, IPv6 to see which one caused the issue… to be continued later….