Choosing between a new router, Wi-fi extender or mesh Wi-Fi system depends on your needs.
Choosing between a new router, Wi-fi extender or mesh Wi-Fi system depends on your needs.
Wi-fi 6 development started around 2015, with noticeable releases by 2019. When choosing an Asus router, keep that in mind. Planning ahead is always wise.
Consider checking for a Cat6 cable in the adjacent room and connect it to an access point. This will provide a straightforward access point for your sister's use, avoiding the need for expensive 600Mbps+ connections if her phone or ISP already supports up to 200 Mbps.
I might ask my brother to lay an Ethernet cable from the modem to the crawl space and into their rooms since he’s an electrician.