Connect to a Network with AppleScript

Hi,

I'm trying to build a script to connect to a network (School VPN) already configured in System Preferences.

However I can't make the script to select the proper network configuration in the table on the left (Image).

I want the script to

1. Open System Preferences -> Network
2. Click on the 5th network configuration.
3. Click on connect.

I've written this script but when I compile it, it returns "missing value".

tell application "Finder"
	open file "Macintosh HD:System:Library:PreferencePanes:Network.prefPane"
end tell

--Here says "missing value"
tell application "System Events" to tell process "System Preferences"
	click static text 1 of row 5 of table 1 of scroll area 1 of window 0
end tell

--Now the script needs to click button "connect"

quit application "System Preferences"

Any idea on how could I make this work?