How to Check Signal Strength:
Open Control Panel and go to Network and Internet > Network and Sharing Center, and select the blue Wi-Fi link to see the Wi-Fi strength.
Hold the option key and click on the Wi-Fi symbol. You’ll see dBm measurements in the RSSI entry.
Check the RRSI value is should be lower than -67 dBM but a good signal is typically below -55 dBm
open the Settings app and go to Wi-Fi to see the Wi-Fi strength of the network you're on and the signal strength of any network that's in range.
Android phone or tablet:
Look under Settings, Wi-Fi, or Network menu. For example, in the settings on a Google Pixel with Android 10, select Network & Internet, select the Wi-Fi you're using, and then select the gear icon next to the network you're connected to. There you can see the signal strength.
When to get a booster:
Getting reliable and fast WiFi around the entire house can be a challenge. Maybe there’s a dead zone in an upstairs bedroom where your kids want to stream a movie, or maybe the signal drops in the backyard. Here are five common scenarios where a WiFi booster can help improve your wireless experience:
1. There are areas in your home that don’t get a WiFi signal
These are known as dead zones or dead spots. If there are places in your house, where you can’t get any or you have low bars WiFi signal, then a WiFi network extender or WiFi booster can help fill in the coverage and eliminate those dead spots.
2. You want the fastest WiFi possible
You can upgrade to the latest WiFi technology, including 802.11ac speeds, without the trouble of replacing your WiFi router. If your router is older and doesn’t support AC, then you’re not getting the fastest WiFi speeds possible; however, an 802.11ac WiFi booster will add these fast speeds to your network. In addition, some WiFi boosters/extenders feature advanced WiFi technology to increase the efficiency of your network, allowing it to handle more devices and traffic.
3. Your home is large
Place your WiFi router in the most central area of the home, but you’ll most likely need to add a WiFi booster or network extender to help your signal reach the far ends of your house.