Wi-Fi extender 2nd gen making high pitched noises even after cleaning.

Wi-Fi extender 2nd gen making high pitched noises even after cleaning. Cannot get passed incessant bot. I've never heard this thing make a single noise but it is squealing so loud and high pitched my cat is like NOPE. I cannot get a person to help me bc the chat rep blocker bot is in full force.

I did gently clean the dust out of this thing and it was very minimal.