I have tested it worked like knife through butter. Thanks.

I have also run into same problem once but the board was not esp32. In my case program also starts to run when I connect the usb and does not run without it. But after lot of debugging I found out that I am using check if you doing something like this.

I will test this and update you.

I have two esp32 connected to same Wifi. There is a web server on the 2nd esp32. 1st Esp32 want to get some data, but did not know the ip address of the 2nd esp32. How first esp32 figure out the IP address?