Do u want to uninstall all the client or install the server and re establish the communication.
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uninstall client without password
Go to this key(If not exists create it)
HKLM\SOFTWARE\Intel\LANDesk\VirusProtect6\CurrentVersion\AdministratorOnly\Security /v LockUnloadServices
Make this value 0, this is the password to stop Symantec services.. Similarly
HKLM\SOFTWARE\Intel\LANDesk\VirusProtect6\CurrentVersion\AdministratorOnly\Security /v UseVPUninstallPassword
Make this value 0, this is the password asked while uninstalling...
OR
u can use nonav/cleanwipe.
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If you want to bring back the communication
You can install server and copy the cert from any client and put it in server pki folder.(Server name and IP should be same)
Or
Install the server and copy the following files to all the Client
GRC.DAT. You will find it in \\servername\VPHOME
Cert from \\servername\VPHOME\pki\roots
Check this doc for client and server communication issues.
http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2005033015282148?Open&src=tranus_con_sl
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