Realtek RTL8723BE wireless network adapter has problems in managing the antenna on Linux. It will scan all networks with signal strength.
TL;DR – the broadcom sta linux driver always fails in the first scan request after this produces a long delay when connecting to a wireless network. and increased the debug level in the config file to finally come out to the.
3 Reasons Your Wi-Fi Dongle Speed and Performance Sucks wifi band channel frequency width Image Credit: Kozuch via Wikimedia.
On macOS, someone below recommended "WiFi Signal", USD 5. Tells me signal strength and quality (i.e. how much noise there is). But there are definitely issues with Linux and the drivers used by AP manufacturers.
Wifi have signal/low power connectivity ie. have to be near router. Linux j- Lenovo-Yoga-2-13 4.10.0-26-generic #30-Ubuntu SMP Tue Jun 27 09:30:12 UTC 2017 x86_64 x86_64 x86_64 This sometimes causes problems.