Generally, the culprit is either your internet provider or your equipment. If you're not experiencing the issue when you're plugged in with an Ethernet cable, your Wi-Fi router is likely to blame.
If your standalone Wi-Fi router keeps your laptop or phone reliably connected everywhere in your house except for that one trouble spot, a good Wi-Fi extender would be the quickest, cheapest fix.
To help you pick the right Wi-Fi extender for your home ... looking for a quick Wi-Fi fix without having to upgrade to a new router, these are the best Wi-Fi extenders you can get today.