What is wrong with my Amazon Fire 7

What is wrong with my Amazon FIre 7? Last few weeks (I’ve had this FIre for two years) it will no detect my Wifi, however it detects all other Wifis in my neighborhood. I tried factory reset, cancelling and re-entering password.
My best solution was removing my cover to expose the tablet, but now it doesn’t work. I have to reset my wifi modem each morning to detect it. It then works all day until I turn off at night and turn on in am and then no wifi

If it detects every WiFi in the area but yours, I’d guess that the bug more likely lies in your WiFi router.

Obvious question: Do other devices have any trouble detecting your WiFi?

just the amazon fire. Updates: I gave the tablet a chance to “find the wifi” by turning it on and putting it next to the modem for 20 min. w/o needing to reset it. It finally does detect it. Just my Fire tablet has this issue , not my laptops or iphones.