Using iCloud with iCal on an old mac under OSX 10.6.8
I have an iCloud account and all of my more modern devices work with it just fine. However, I want to link the iCal calendar on an older Mac into iCloud as well. (There are legacy programs on that Mac that do not work on modern Macs, so I cannot update he system software beyond 10.6.8)
There are various threads both here and in other help communities that gave many answers, mostly dated when iCloud first came out. Most revolve around setting up a CalDAV account. I have tried this, but even though it seems to get me to the right server, the caldav.icloud.com server rejects my username and password. I know these are the correct username and password for my icloud account. So I'm at a loss. Is the caldav server asking for a different username and password or am I doing something wrong.
The sever address the account set up gives me is
caldav.icloud.com The server path is
*****@w***dio .ca/
Any ideas?
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iMac (Retina 5K, 27-inch, Late 2015)