msync.zoho.com - Mobile sync Problem

msync.zoho.com - Mobile sync Problem


My exchange mobile android sync (msync.zoho.com) have stopped working.  No settings my end have changed.  I have not had issues in the past, however I am now getting an invalid credentials (user name or password incorrect).
I am also using imap access on android with Two Factor Application Specific Password, this is still working, so the problem must be something to do with mobile sync (msync.zoho.com).  Anyone else having this problem?