I have been having short random disconnections to my downstairs network for some time, I have investigated as follows.

Network setup - Upstairs Broadband router (Draytek) connected to 8 port unmanaged switch and a PA8010P V2 1300Mbps.

Downstairs PA8010P 1300Mbps connected to 8 port unmanaged switch and RyZen 3400G computer. Both PA8010P V2 are straight into sockets.

The wiring from the upstairs socket is a 16amp Radial into it's own mcb and downstairs is a 32 amp ring main into an mcb on the same side of the consumer unit.

I purchased a small program which pings three outside servers (Google, Level4, OpenDns) at user set intervals and logs the results of any loss of feedback from the servers.

First I ran it on the Ryzen downstairs computer. These are just short examples, I ran the computers for 24 hours with the same but longer results.

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20/11/2019 19:36:03    Log Start
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Failure Start          Length
20/11/2019 20:04:17    0:00:23
20/11/2019 23:06:13    0:00:34
21/11/2019 02:01:07    0:00:57
21/11/2019 02:29:56    0:00:35
21/11/2019 04:04:58    0:00:37
21/11/2019 07:55:55    0:00:22
21/11/2019 08:24:02    0:00:45
21/11/2019 08:41:19    0:00:54
21/11/2019 13:50:20    0:06:09
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21/11/2019 18:23:48    Log End
Monitor Duration    22:47:44
Failure Summary:
    Count        9
    Total Downtime    0:11:20
    % Downtime    0.83
    Minimum Length    0:00:22
    Maximum Length    0:06:09
    Average Length    0:01:15
=======================================

Now I connected a laptop running the program directly into the upstairs 8 port switch

With exactly the same program settings there were no disconnections.

I then set one of the pings on the program on the Ryzen (downstairs) to ping the network gateway every 1 second

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21/11/2019 19:13:45    Log Start
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Failure Start          Length
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22/11/2019 16:09:58    Log End
Monitor Duration    20:56:12
Failure Count        0
=======================================

No disconnections.

If I run a computer directly into the upstairs network before the PA8010P no disconnections.

If I ping the network Gateway every 1 second no disconnections.

The mode in the Utility program is set not to sleep.

If you draw the same conclusions as I do that one or both of the PA8010P are taking a nap on the quiet would you please concoct some way of fixing the problem or if you have any other ideas please put them forward.