How to use WireShark to find internet connection interruptions?

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Thanks for the reply, I bought this D-Link AC2200 that comes with 2 access points, bridged my Shaw modem, put one of the access points on my son's desk where he plays games so he'll get more signal because he's far from the main router, I tried both wifi and wired connection from his desktop to this access point but the internet keeps dropping, he turned off the access point and connected to the router itself last night, we'll see if that makes any difference. Unfortunately I can't run a long cable from the router/modem to his room, so wifi is the only option. I'm in the same room as the router and remote to my work desktop all day, I'm not disconnected from the internet through out the day so it seems the issue is the distance from the router!

Maybe a Powerline Adapter is better in this case. The benefit of a wired connection without a 'long cable'.

So the Access Point (AP) is close to the desktop, that explains why it reports WIFI connected. But the signal between AP and router can still be an issue. Walls, floors, glass, metal, etc. will reduce the signal strength and microwaves, DECT phones, neighbour's WIFI can also interfere.

I have one of those, currently using for the basement smart TV. This D-Link COVR router came with two additional wireless access points, but apparently they are the problem themselves!

Yeah it's a simple task when you're troubleshooting your internet connection, I hope there's such tool. I can get the router log, don't know what I should look for in the file!