The method to starting up any server that works best for me is:
1: install instance (Be sure its set to do nothing after install)
2: Configure the instance/games settings to how you want them.
3: Run the update FIRST so AMP can fetch/install the games files.
4: After the initial update/install, THEN click on start.
This method has worked the best for me in every instance I have tried, and as always, your milage may very.