If you encounter any problems when syncing your Calendar with external calendars, you will need to enable third-party cookies in your web browser. That can be done easily! Below, select the browser that you are using and follow the instructions.
in Google Chrome
At the top right, click the menu button and go to Settings
Under Privacy and security, click Cookies and other site data
Make sure Block third-party cookies is not selected
You can select Allow all cookies or Block third-party cookies in Incognito
in Safari
At the top toolbar, click Safari
Select Preferences
Click on Privacy
Uncheck Prevent cross-site tracking checkbox
Uncheck the Block All Cookies checkbox
in Mozilla Firefox
Click the menu button and select Preferences
Go to Privacy and security
Under Enhanced Tracking Protection, select the Custom radio button
Uncheck the Cookies checkbox
in Microsoft Edge
Click the menu button and select Settings
Go to Site permissions
Click on Cookies and site data
Turn off the Block third-party cookies toggle button
in Internet Explorer
At the top right, click the gear icon
Select Internet options
Hit the Privacy tab
Click the Advanced button
Select Accept under First-party Cookies and third-party Cookies columns