Comment 10 for bug 1400703

Without any log this is just shooting into blue. Lets try to deactivate some steps on the mountprocess and see if it makes BIT to stop freezing.

Please add a line 'return True' after 'def pre_mount_check(self, first_run = False):' in /usr/share/backintime/common/sshtools.py
It it's still freezing add 'return' after 'def _mount(self):' and try again

If one of these helped please add some (not very professional) debug symbols into the function that failed. Something like
with open('/home/USER/bit.log', 'w') as f:
     f.write('check_ping_host run successfully, trying next')