Use any of the following three methods to activate the switch.

1.  Edit the shortcut for the Google Drive and add the switch at the end:
      Change C:\Program Files\Google\Drive\googledrivesync.exe to C:\Program Files\Google\Drive\googledrivesync.exe" --unsafe_network
 
2.  Open a command prompt and navigate to the folder where Google Drive is installed.
      At a prompt, run googledrivesync.exe --unsafe_network

3.  You can also push out a registry entry change if Drive Sync is auto starting
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\GoogleDriveSync].
Add the value -unsafe_network after the quote as shown below.

"C:\Program Files (x86)\Google\Drive\googledrivesync.exe" --unsafe_network
/autostart