This option is available on "Targeted Agent Settings" page in settings policy
OR
You can create "Run Script" task from Symantec Management Console and use this command to disable "Bandwith Control" for targeted computers
Enable "Bandwith Control" for Symantec Management Agent:
reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Altiris\Communications" /v "Enable Bandwidth Control" /t REG_DWORD /d 1 /f
Disable "Bandwith Control" for Symantec Management Agent:
reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Altiris\Communications" /v "Enable Bandwidth Control" /t REG_DWORD /d 0 /f
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