I have faced problems with Dirsync synchronization with the following Event IDs:6126,0,109,6801,6803,6110,0
Password reset for Dirsync cloud account and its configuration in MIIS client.
1. Event ID 6126
2. Event ID 109
3. Event IDs 6801,6803
4. Event ID 6110
5. Password needs to be changed in the cloud
Just logon to the cloud and change password via WEB interface
6. Password never expires
7. Set new password in DirSync
In the Windows Azure Active Directory connector you should set new password.