Was transferring between a Windows 7 PC and a Windows 8 PC wirelessly thinking since both are local it would stay on my wireless network and not use 4G bandwidth.
It SHOULDN'T be using LTE at all. There must be some sort of setting in the HF router that will makes sure you're not doing that. Otherwise like you said it's a stupid design. You may need a regular router set up just to use to for things you want to transfer on your home network.