TCP connection for VESC tools is unavailable when uart connection is established with Lisp

[senhwa]

Hi, we are using VESC 4.12 and Firmware is 6.02.
We are utilizing Serial-Ether Converter (like Eport-20) to communicate with VESC through Ethernet.
Basically, it works well, available with using VESC tools via TCP and socket communication with pyvesc.

Now, We want to use uart connection with the lisp code running on VESC.
But after establishing uart connection with the code
(uart-start 115200)
then, TCP connection with VESC tools and socket communication with pyvesc is unavailable.
More detailed, TCP connection is recognized, but VESC tools says the firmware of VESC is not detected.

Is there a way to make this implementation possible, or is this a wrong way to use it?

We always thank you for your supports and updates. Have a nice day.