For the power line adapter either should be ok, difference in latency should be minimal. My NVR LAN port used powerline adapters for years, connected to the router.inexplicably, the garage cam just appeared in Hik-Connect. I just had a browse in the app and it just popped up. so everything seems ok for now I think. the way I have connected the powerline adapter in my house(directly to the NVR) is that really necessary, or could I connect the powerline adapter directly to my router downstairs, would mean a shorter distance? I think from watching some videos that possible but could be wrong...