I am all Mac's - many dont have ethernet ports - so I use "adapters" that go into their USB ports - so I can connect ethernet that way - when I want that. These are quite cheap at the usual places - get one for your "bits" drawer.
If its wifi only it could be for many reasons - our wifi goes down when the Panasonic Microwave oven is switched on in the kitchen! There are many other reasons .. one of my favourites on here was another one dropping at the same time every early evening. When it was eventually tracked down is was a direct consequence of the street light outside their house switching on !
If it is network related and not just wifi - it will show on a BQM.
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If you haven’t already, set up a free, secure and “offlsite” - “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts , latency issues, packet drops, etc - it will thus allow you to differentiate between those and simple wifi dropouts. It does it 24/7/365 and it keeps a visual record of any/all of your network disconnections, useful data to have to match to the Network logs (in your Hub settings) and also in discussions with VM - note it will take a few hours to start seeing a sensible picture - post up the “link” to the “share live graph”. Click the lower link (Share Live Graph) then, click generate. Copy the text in the Direct Link box, beware, there may be more text than you can see. On here click the Link icon (2 links chain to the left of the camera icon) In the URL box paste the link you copied and then click OK
https://www.thinkbroadband.com/broadband/monitoring/quality