Hi,
Thank you for posting in Symantec community.
I would be glad to answer your query
1) Reboot those seven machines if possible, you can initiate reboot through SEPM as well.
2) Make sure SEPM & SEP client policies numbers are the same.
3) Repair the SEP client
4) Check if definitions are corrupted
How to determine if virus definitions of Symantec Endpoint Protection client (SEP) 11 or 12 Small Business Edition, are corrupted
http://www.symantec.com/docs/TECH97677
If yes,can manually clear the corrupt definitions
How to clear out corrupted definitions for a Symantec Endpoint Protection Client manually
http://www.symantec.com/docs/TECH103176
5) SEPM is updated so .JDB file is not needed in this case, update those clients using intelligent updater.
http://www.symantec.com/docs/TECH102606