I see no PC details so try the usual. Test with some USB WiFi and follow the PC maker's instructions for BIOS and drivers. Disable power saving on the WiFi and be sure your router firmware is current.
The lack of PC details means only generic advice. If you told me you had a decade old WiFi card, I would also say it's days are over.
I have several items in my home that use the same wifi connection. My PC running Windows 10 also uses the same connection. I have connectivity issues on the PC but all the other items do not have connectivity issues. The other items are a PS4, XBox ONE and laptop. The other laptops are running Windows 10 also and they do not have issues. The PC with the issues has an internet wifi card, not an USB adapter.

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