Below is a very simple test page to diagnose log in problems.

This is already set up as a 'test' account that is known to work.

Everything should be set but password which is 'rapidblog' (password is stored in keychain so you need to enter it manually)

Go to setup menu, enter the password as 'rapidblog' and you should be able to sync to it just fine.

If it does not sync and you still get an error please let me know.