...it is important to understand that most of this is trial and error. Often, the standard 2.4 band is what can work more effectively. Test it out using both types of networks and see which one performs better in your residence.
For example, my home network application was a 'slam dunk' regarding textbook usage of 5G, but due to unforeseen interference of metal in the walls (or something else rather odd), switching the streaming device to the 2.4 portion of the main router supplied network functioned a lot better. My devices across the house just were not seeing adequate performance for video.
Also ask your self how much of your (total) streamed content is actually 4K, especially simultaneously(!)
FWIW, I have had luck with an Asus Ac3200 router. It seems to provide plenty of flexibility to handle the whole shebang at home. Two newer iPhones that support the 'ac' standard utilize one of the two available 5Ghz networks.
Can someone please help me in the following areas since I'm brand new to setting up a home network.
1. what is the minimum bandwidth/speed that I must have on my gigabit ac router in order to stream 4k videos in home network from NAS to any WiFi enabled client? i.e. should I buy a router with total data rate of 3000+/2400/2500/ 1900/1750 Mbps?
2. If I have a main router connected to the ISP modem, access point in room 1 connected with Ethernet cable Cat 6. If the NAS is connected to the main router (link aggregation/port bundling), is it in theory the same as connecting the NAS to the AP since it is on the same LAN network. Specifically in terms of speed. Can I still stream in room 1 without buffering?
3. As mentioned earlier, if NAS is connected visa Ethernet cable to main router, at what level of the home network must the 5GHz be specified for lesser bottle neck and better streaming capabilities although lesser WiFi range. Should the NAS be set up to be broadcasted on 5GHz or the client connecting to the NAS should be connecting via the 5GHz band? I'm clueless about this. Please provide your kind reply with basic understanding of this.
Thank you for all your replies/responses in advance.