1) Stop Bittorrent Sync package
2) SSH to your Synology
3) Go to the Sync storage folder. “/usr/local/bittorrentsync/var/”
4) Locate and remove the following files:
settings.dat
settings.dat.old
5) Once the files are removed, restart Sync, open WebUI and enter your new login and password.
Check the folder permissions
An intelligently engineered and reliable platform for storing data. Intuitive, yet completely private collaboration suite. Exciting virtualization technologies for the next generation of business. Get these and much, much more with DSM 6.0.
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Source: DSM 6.0 Beta – What’s New – Synology – Network Attached Storage (NAS)