@Ven18 

I have this similliar issue but my devices already out of warranty, hopefully it's just firmware bug.

  @d0ugmac1 yes your doubt is true, neither firmware or adaptor, the fault is in the devices itself. very smart also durable product, broken after out warranty, i'm very mind blowing how tplink can design this product, very intellegent.

This device is outdoor category but i use in indoor, mean its should be more durable right ? because indoor usage more clean environment. 
I bought this devices on 2020 and now trashed in 2024, my other devices other brand still work properly. 

only tp-link, I have switch tl-sg108e also broken, and i already ask on my local reapair and they informed me that the controller chip is broken, if replace is prices same as new devices.

also tplink in my region indonesia, does'nt support repair services, so i should buy new devices that i will not buy from tplink anymore.

thanks also goodbye tplink.