Calendar has stopped syncing since El Capitan upgrade
(Mac 27", late 2013; El Capitan 10.11.1) The Calendar app will no longer sync with my (android) calendar app or with Google calendar. Cleared cases (whole system); email account logins are up to date and renewed. Any event entered in Mac Calendar fails to show up in other calendars. Any suggestions?
iMac (27-inch, Late 2013), OS X Yosemite (10.10)