Hi all,

I'm a networking newbie with several questions.  I recognize that many of these are RTFM questions so pointing me to the relevant document(s) would be helpful and will hopefully take less time than formulating an answer.

I have the Deco s4 with a main base and two satellite units. The system has been operational for about a year and totally satisfactory. I'm in the process of adding 2 NAS units to the network and this has caused some serious network availability issues.  I'm trying to learn enough to resolve the problems before my patient wife kills me.  There are 3 computer, 2 phones, 2 NAS units and some IOT connected. I am changing the network topology to cable the computer which uses the NAS and both NAS units into a switch. The switch then connects directly to a Deco unit using an Ethernet cable.

1) Is there a way to tell what Deco unit a specific device is connected to?  A better approach might be to list the devices connected to each Deco.

2) Is there a way to tell how much load is coming from each device? Preferable a way to track the traffic over time to a chart or graph.  If part of the problem is two or more devices demanding too much bandwidth concurrently there may be a way to schedule around the problem.

3) What does it mean when the tp-link software reports cpu at 100% (varies in real time from 20% to 100% but sits at 100% a lot) and memory around 50%? Does this mean the router is saturated?

4) The Deco has a "wireless" and "guest" with both 2.5 and 5 GHz frequencies and multiple channels.  Will locating devices on separate frequencies and splitting them between the Wireless and Guest help overall throughput?

5) Can I set device priority so that Computer A and the two phones are always able to get bandwidth quickly regardless of what Computer B is doing? I think the network performance issue is B hogging bandwidth when using the NAS.

6) The NAS devices cables directly into the Deco main or satellite units.  If there is virtually no traffic between the NAS and the Internet is there any advantage in plugging into the main or a satellite unit?

Thank you in advance for any light you can shed.  I found answers to some of the questions but they specifically referenced different products (not S4) and seemed to be very version specific. 

Regards

Glenn