I've got a Galaxy S on 3 network. It's firmware is up to date via Kies. It is on Gingerbread.
Since I've had the phone it fails on the SNS Calender sync with 'Sync is currently experiencing problems. It will be back shortly'.
What can I do to fix this issue? I have no such errors on Facebook Sync Contacts.
I too get this problem. A lot. Both Twitter and Facebook. I only ever seem to be able to complete the initial sync before one of two things start happening:
1) The sync "looks" successful, but no changes are made (ie: new contacts are not present in the contact list)
2) I get the "currently experiencing problems" message, and it never manages to "Correct" itself.
I can find lots of people reporting this issue on the internet at large, but so far no solutions.