u/Impressive-Crab2251

I am having difficulty getting wifi out to both a detached garage and a guest house. I have cat6 going to both from the cable modem in the house. Should I put a wireless router in each of the two buildings and if so, should I create new wifi networks?

Update:
I'm 66 ft from the cable modem in the house using CAT6 to the ADU/casita, I was previously using an apple router but it won't let me connect anymore. I also have a dvr in the AUD that requires a hard wire.

For the garage, I'm about 74 ft, also wired with Cat6.

Last night I ordered a NETGEAR Nighthawk Dual-Band WiFi 7 Router (RS90) – Router Only, BE3600 Wireless Speed (up to 3.6 Gbps) - Covers up to 2,000 sq. ft., 50 Devices – 2.5 Gig Internet Port.

Plan was to install in ADU and if it works well replicate in garage.

I read...
Crucial Tip: Make sure the second router is set to Access Point (AP) mode so it doesn't fight with the main router for IP address assignments.

Update: installed net gear router works really well. Annoyingly you cannot set AP mode on the app you have to login to the router but it worked.

Looking for recommendations nc miata.