What is wlan0 on my network?
Interference is by the far the common problem but also how WiFi is setup can cause problems. Making Router and Extenders the same SSID network name, Make it Easier but can create a roaming issue with cheaper routers: Many people have complained over the years about this as they want seamless wifi.
Will a signal booster improve WiFi?
How to Stabilize a WiFi Connection
How do I stabilize my WiFi connection?
Stands for “Wireless Local Area Network.” A WLAN, or wireless LAN, is a network that allows devices to connect and communicate wirelessly. Unlike a traditional wired LAN, in which devices communicate over Ethernet cables, devices on a WLAN communicate via Wi-Fi. In fact, most routers sold are now wireless routers.