Service Provider Support Does Not Open, Or Is Unable to Connect
Open the users keychain folder in Finder at ~/Library/Keychains, ie /Users/uniqname/Library/Keychains
Look for directories that have a UUID-type name, ie ‘962ACF28-6B33-4ACC-9997-4F8096C8856A’ and delete it. (This is just an example, delete all directories that have a similar name)
Reboot the computer.