I have a devolo 1200ac homeplug which has two gigabit Ethernet ports.
I have the wireless off on home plug (use it as powerline only) and have unify ac pro connected for wireless tasks.
It's not the full speed but on my local network get decent wireless performance.
I have not done a full test for 4k files over wireless which are stored on my nas.
Attached is a performance test from my mobile to fing box for wireless performance.
Should work fine on homeplug but the connection will fluctuate.
Thanks for the update. https://www.avforums.com/attachments/screenshot_20171209-135518-jpg.950493/
Unfortunately even after a year I am still no closer to resolving this. The asus didn’t work well and now I am using a Ethernet cable from upstairs to downstairs. I brought various wireless routers like the dlink 882 and linksys wrt3200acm and still no joy. Anything else I could try?
A permanently wired solution ... data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
There is a reason why wireless doesn't work in this type of scenario.
Custom wireless solutions get to the point where it will cost more than rewiring and replastering your entire house!
Try a top end router for wifi such as the Netgear R9000 or Linksys EA9500v2 - the Asus RT-AC87U and Linksys WRT3200ACM are NOT at the high end. I have the Linksys EA9500 and can stream 4K video anywhere in the house using 802.11ac wifi. Of course even the best router can't change the laws of physics (eg if you have thick internal walls), in which case consider a wifi mesh system such as the netgear Orbi or Linksys Velop systems.
What was your 4k bandwidth out of interest?
No idea on the actual figures, but we can watch multiple 4K videos (Netflix, YouTube) and Xbox 4K gaming, all simultaneously using 802.11ac wifi on our 300 Mbps FTTP line. Each device gives at least 250 Mbps in speedtests using wifi, anywhere in the home.
I am watching actual 4K movies which have a max bandwidth of 128Mbps/16MBps. I thought that Netflix and YouTube use lower bandwidth for 4K.
Yes roughly a quarter of that...
Netflix recommend bandwidth provision of 25Mbps for 4K content, YouTube say you need consistent download bandwidth of "at least" 15Mbps for their UHD titles.
If you go wireless you are always always always going to carry the risk that another device will interrupt the stream, because wireless is a shared medium. And the more you add bigger-better-harder-faster APs/routers, then potentially the more you are going to have to upgrade every other device in order for those clients to access the wifi network in a manner that is in accordance with the standard/ vendor's implementation
Or you could run a separate wifi network on separate hardware, to ensure that your '4K streaming net' is only accessed by devices you want to access it.
At this point, running flat ethernet cable up the stairs in a manner that is hidden from the eye, for the cost of about £25 and a couple hours work starts to seem more attractive.
just my tuppence