Once in a while (nowadays more like a couple of times a day), I get the limited connectivity warning on my computer (yellow triangle with exclamation point), as do my parents' laptops (all wireless). My sister, on the other hand, uses a wired connection and she never has this issue. If I reset the router by turning the switch on and off, the issue is resolved, but it could happen again in a few hours or the next day. Also, this problem doesn't seem to occur when I'm actively using the internet, such as gaming or streaming, but when there's a lull in activity. What's happening?
I'm not sure how to edit so I'm just going to reply.
I turned off power management and got the same issue today. During a game, no less, so you can scratch the activity part out of my original post. Interestingly, my sister (on the wired connection) got the issue as well. Also, your solution didn't account for the 2 other laptops with wireless connections having the same issue while the wired connection didn't previously.