Application-specific password works for 30-40 minutes and then is rejected as incorrect.
I use Fantastical for my Calendar. After generating an application-specific password, it works perfectly (eg there is a two-way sync between Fantastical and iCloud). However, after 30-40 minutes I am told that the password is incorrect and have to generate a new application-specific password. This is happening on two different computers. How do I get the application-specific password to work permanently?
Mac Pro, OS X Mavericks (10.9.5)