Yesterday we upgraded our Scalix Enterprise Server, running on SuSe Linux Enterprise, to version 11.4.4.4904. After the upgrade all mail clients, such as Outlook, Thunderbird and Mail have full functionality with the server. Calendaring works fine with Outlook and with SWA. Only iCal won't connect anymore from any Mac, stating that the server is busy and refuses any connections. iCal was working fine from all Macs before the upgrade.
As a cross-check I tested Thunderbird with Lightning on the Macs receiving the same result as with iCal.
Being quite new to Scalix I checked the Forums and some search engines yet could not find a resolution.
When accessing the calendar through a browser using
https://<server>/api/dav/Principals/user@doman
I receive a similar message as from within iCal: "Service Temporarily Unavailable".
The api-log doesn't contain any recent entries.
Where should I start looking?
Thanks,
Karsten