Im trying to use the Zimbra Desktop as a Calendar Client for our Companys Construction Shedulling.
We have a Working Ical Server in an Ubuntu Egroupware installation.
Since the Web Interface of the Egroupware "doesnt fit to our workflow" I am looking for a Desktop Client.

When i try to link the ical calendars into Zimbra Destop (https://XXX.org/egroupware/icalsrv.php/events.ics) it keeps telling me: "The URL is not reachable at the moment"

As far as i know the error could be that the calendars are password protected, since we dont want to change the password protection i have to find a way arround.

Any help is appreciated

Sorry for bad english