caldav refresh

Hi Support.
I have used the eM calendar function to access a Communigate Pro V 6.0.9 caldav calendar
This populates the calendar entries on eM, but then refreshes by clearing tha calendar and repopulating about every 15 seconds, this takes about 45- 60 seconds, then Synchronizes again 15 seconds later.
This happens more often when flipping between the mail client vie and the calendar view, 
It does tend to make it difficult to work on the calendar 

any ideas/ Settings?

Hello Andy, what version of eM Client are you currently using on your computer, can you please check the exact release number in Help > About? Is this a calendar server hosted locally or on a remote server?

Are you seeing any errors while trying to synchronise the account with the server? Are you able to replicate this issue each time? If so, please navigate to Tools > Settings > Advanced and enable CalDAV logging for the problematic account in eM Client and save the settings. 

Replicate the issue and once the error reoccurs, please go back to the advanced settings window and submit the logging data to my work mail, [email protected] with a reference link to this forum topic.

Thank you,