Somewhat old thread, but you can disable the ping on the host lists by going to FOG Configuration->FOG Settings->General Settings->FOG_HOST_LOOKUP and clearing the checkbox. Easier than disabling the javascript file. There’s a possibility this was introduced in the time between your post and my find, but if not, it’s here for others.
A find and replace on that field in MySQL took care of it for me.
[CODE]UPDATE snapins
SET sFilePath = replace(sFilePath, ‘/opt/fog/snapins/’, ‘’);[/CODE]