SAMBA on QNAP
To understand what going on with you samba connection, you could use smbstatus. But this command is not available in path on QNAP systems.
It is located in /usr/local/samba/bin/:
/usr/local/samba/bin/smbstatus
smbstatus is a very simple program to list the current Samba connections.
Usage: [OPTION...]
-p, --processes Show processes only
-v, --verbose Be verbose
-L, --locks Show locks only
-S, --shares Show shares only
-N, --notify Show notifies
-u, --user=STRING Switch to user
-b, --brief Be brief
-P, --profile Do profiling
-R, --profile-rates Show call rates
-B, --byterange Include byte range locks
-n, --numeric Numeric uid/gid
-f, --fast Skip checks if processes still exist
Help options:
-?, --help Show this help message
--usage Display brief usage message
Common samba options:
-d, --debuglevel=DEBUGLEVEL Set debug level
-s, --configfile=CONFIGFILE Use alternate configuration file
-l, --log-basename=LOGFILEBASE Base name for log files
-V, --version Print version
--option=name=value Set smb.conf option from command line
Samples:
/usr/local/samba/bin/smbstatus -L # Show locks only
/usr/local/samba/bin/smbstatus -p # Show processes only