we use webcal links for publishing some calendars. But the clients that subscribe these calendar will only find appointments until 6 months in future. I tried in Gmail, Thunderbird and Outlook, allway the same result.
The link has been generated by publishing the entire calendar, no time limits were set.

I think, there will be a hidden option at server side so I would be able to adjust the period that will be shown.

Do you know what to do?