This is ridiculous Samsung Service agent doesnt know how to fix wifi dropping problem.

Since last december my wifi dropping only in my room. Until now no help from anybody.

Still no solution for wifi dropping after security update on December 2018.

After security update on December 2018 begin to drop wifi connection continuously. After reconnect twice it's appearing 'Internet Not Available' and it's happen only my room. I visit samsung service center and they reset phone. But no success. Still ...