Solved D2 won't start without Internet?

D2 won't load up. Game guard says "without Internet". Can I not play single player while offline?

 

well the guardian is linked to the server and when you start the game it tries to check for hacks. so if you dont have internet, it cannot connect and check your game for hacks. so it seems clear to me

 

Ok so here's a dumb question. How do I play single player offline?

 

create a fresh install of the game into another folder, dont do anything to link it to the online server(regs, setup, etc). Just leave it as it is installed then you can play without internet.