Piviul,
You shorted something out. Past the Power Supply. related to Ground ( GND ).
I would STRONGLY ADVISE to not PLAY at this. Do not DABBLE with Electronics Engineering.
The mistakes you make could cost you your life.
I would advise that you enter a Formal Program of Instruction in Applied Physics 1: Electronics Engineering.
And if you want to " write your own ticket ".
While in this Curriculum, Specialize in Computer Science, and Information Technology.
I cannot stress enough.
Untrained Personnel attempting to modify another Engineers Circuits should have Proper Training.
( THE GOLDEN RULE OF ELECTRONICS ENGINEERING )
Without Proper Training, you will have disaster after disaster.
As it will be the steepest learning curve.
AS ELECTRONICS WAS THE HARDEST SH*T IMAGINABLE TO LEARN.
Every other Field of Physics was easy compared to AP1.
Related to TPLINK GND. Ignore Google AI.
Trying to help.
-StealthMode