We use them to reach to other areas. The most common extender I'll deploy is powerline networking with WiFi.
Example product: https://www.amazon.com/NETGEAR-PowerLINE-1000-802-11ac-Gigabit/dp/B01929V7ZG
Charter tells me I need a router extender. That Amazon streaming needs more bandwidth. It's all Greek to me. I am old school, 91 years. My router is upstairs next to my computer. The Television is down stairs halfway across the main floor in the living room. I have a very limited budget. Can you recommend an affordable extender-- name and type, etc. Thanks, guys.

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