Virtual Production Ova - Internet Required

Why does ERPNEXT Virtual Production require the internet when logging in , yet on the first login it does not use an email address.
What this tells me that , if my internet is off line then production will not work.
Production should work irrespective of internet being on line or not, is there a way to disable this mandatory check. We have a lot power cuts in our area so the internet drops often , which means i can not use\test\demo ERPENEXT.