Once a while, a client goes into "Disabled" once a while

Hello,

I have notice anoying behaver, once a while a random client goes into "disabled" mode.

When i go to the DLO server console, the client shows as "Active", 

if i forecly rightclick and do disable/enable the problem fixes.

it happand to me with several client, already. that is very anyoing.

i have to keep tracking the console in order top check which client had backups and which does not.

the only reason for that i think that can cause that is that every night i backup the NUDF dirs and in order to do that i am shutting down the services of, SymantecDLOAdminSvcu, SymantecDLOMaintenanceSvc, MSSQL$DLO, DedupeWebServer

and then i am turnning them on after i complete the backup.. i turn of SymantecDLOAdminSvcu first, and the sql server last.