The calendar permission configuration is incorrect

[Joyceth]

We have 6 devices in our office using ZoomRooms + calendar integration.  A couple of weeks a go we had the following error on our devices : "the calendar credentials are either expired or invalid"  After having this error resolved  4 out of 6 devices are working again but on two devices the error changed into:  "the calendar permission configuration is incorrect" 

We are unable to fix it, can anyone advise?  We already have  forced a re-sync of the calendar services from the Zoom account.

[Mitch3]

I am also running into this issue with a few of our zoom rooms and looking for a resolution. Have not been able to find much on this. I also have a forced re-sync of the calendar as well.

Would appreciate any input on this, thank you!

[Mitch3]

I was able to remedy this with my devices by making sure the calendar I have integrated with O365 and zoom portal correctly.

Hope that helps!

[JeffG01]

We had this issue and traced it to a security setting on the Exchange server (onPrem), 

We had to review and make and exception with the Exchange Extended Protection that was release around September. Interestingly these had been set for some time but decided to block Zoom today - perhaps there has been a backend change within Zoom. Hopefully this will point someone in the right direction and save some time.

[PZor25]

Hey Jeff, would you be able to give some more detail on the exception that you had to make to get this working with EP enabled?

Thanks.

[JeffG01]

It was a contractor that applied the EP for us but basically just changed the EP settings one by one and tested after each. We also had to change a setting from another app so I'm not sure exactly which ones they changed.

[Zanpa]

Hi !
We have same problem here with 2 zoom room and yealink controller.
After 4 month with Zoom support : no solution and tell us to contact microsoft...
I try to add yealink computer to domain with AD user account, configure NTLM level, signin network communication etc... nothing work
Someone know how to bypass zoom from EAP ?   

[JeffG01]

Zanpa, Could it be networking/ firewall for your domain issue? put that PC on known network and see if it can join the domain, then move it back.

Did you do a resync for the calendar from the zoom admin portal?

Else you might have to fiddle with the Exchange Extended Protection open them back up one a time and see if that allows the connection.