Having the same issue. Getting emails every 2 hours. No change has been made to any account or password. Started getting messages starting Sunday night 7/23/17 with Sophos UTM 9.501-5. Updated the firmware to 9.502-4 and restarted, still the issue continues. Ran a test to check authentication issue for admin and bind account both passed but the sync keeps failing.
Waiting to hear from support!
Having the same issue. Getting emails every 2 hours. No change has been made to any account or password. Started getting messages starting Sunday night 7/23/17 with Sophos UTM 9.501-5. Updated the firmware to 9.502-4 and restarted, still the issue continues. Ran a test to check authentication issue for admin and bind account both passed but the sync keeps failing.
Waiting to hear from support!