I ask what model receiver you have as the older ones could only do 1080i. Not sure why the agent said 4k can't do 1080P it supports all the various resolutions. But if you don't have the proper hardware you won't display 1080p.
If your TV has built in APPS like netflix you'd be best to use them for now till you get the proper 4K receiver so you can get netflix in the proper resolutions.
So my dad's Toshiba 4k tv was displaying can't display hdcp thing and I phoned tech support and the guy ask his supervisor what's wrong, they said I need a hdmi 2.0 cord not the one the technician provides... 1.4 only can get 1080p out on the original need a 2.0 for 4k. I don't understand telus, lol 😛
@kikithecafekief101 HDMI 1.4 has support for 4K as well but only for certain configurations. I already told you all this and about HDMI 2.0 in the post you made a few days ago. You should have been able to identify the cable without even calling tech support just by simply looking at it. It's printed on the side of the cable. You were also advised that your father needs to check with his TV manufacturer for software updates since his TV was incapable of running 1080p at all. You also indicated he did NOT have a 4K box as well.