Just run multiple tests, one close to your WiFi Hotspot and one in the place where you're having issues because the signal strength diminishes. So to figure out if your connectivity issues are due to your ISP, your wireless connection or a local router issue running a WiFi Test will give you the insights you're looking for. Most of the devices on your home network today are not connected with a wired connection anymore.
Running a WiFi Speed Test is the right solution for most people if they encounter connectivity issues as they are usually internet speed related.
