I believe this is a two part question so will be focusing on the infrastructure hardware part first.
So, I have a two level (floor area is roughly 45ft x 60ft on each) home business network that I created with the following hardware:
1 x Netgear D6200 Dual Band Router
1 x TP Link TL-WPA4220 Power Line Adapter
The following hardware is available but not in use:
1 x Netgear WiFi Range Extender (N300)
1 x Linksys WRT1900AC
Devices in the network are as follows:
1 x QNAP Turbo NAS TS420 (dual Ethernet ports)
1 x Desktop PC with Ethernet
2 x laptop computers (WiFi)
2 x smartphones (WiFi)
2 x smart televisions (WiFi)
2 x gaming consoles (WiFi)
1 x MFC brother printer (WiFi)
Despite investing heavily my hardware, I am continuously experiencing the following issues:
1. Wireless devices intermittently switch between the 2.4ghz and 5ghz networks;
2. In some cases, the 2.2ghz network does not broadcast its SSID causing devices to loose their connections;
3. Gaming consoles (PS4 in particular) fails to detect and connect to the 2.4ghz network;
4. Throughput is way slow. Example, the best uploading speed I can get on my NAS is around 5mbps, worst is less than 1mbps and average is 1.7mbps;
5. Genie backup software on local pc's cannot detect NAS as external storage location;
To help experts willing to assist, I have included a basic drawing that outlines my setup.
Without major interior modification, does anyone have any idea on a better approach for this setup to achieve maximum throughput and stability?
Thanks in advance.