RBK20W

Why does my "Devices" show things I do not own? Most are unknown but I have several Sony laptop which I do not have; Texas Instruments, also do not have; ESP_ with various numbers;  RDA 59XX_STA; TL-WA85RE no clue plus several others that are listed for items I don't have.

My phone shows full strength for WiFi throughout the house but the Devices list shows only 1 or 2 strength levels and no strenght for 3 items.  The number of devices changes from 2 or 3 to 46.

All of this is very confusing and makes me feel the Orbi is just guessing and posting random items. Installing it didn't really help much more than the extenders I replaced it with.  I still have to use an extender in one location (attached garage) because if I don't I get no signal at all.

Someone please explain.

Thanks!