ESP32 flash programming issue

[Deepak]

Hi,
I am trying to program by esp32 dev kit using make flash or using flash download tool and it is getting downloaded properly on my desktop but if I try to download the same in other computer flash download fail showing error as "timed out waiting for packet header"
and also want to know Is flashing dependent on debug or release optimization level that can be set from make menuconfig? I have kept optimization level to "DEBUG"
Please help me out with this

Thank You.
Deepak Patel