@johan @thibault I've managed to do it finally.
After I've set IP for HTTP server

wlan.ifconfig(id=1, config=('', '', '', ''))

i've tried to read IP address of HTTP Server and that was the problem, it's keep returning me ''. IP address was set properly to '' but function returns ''.

print('Network config:', wlan.ifconfig()) Network config: ('', '', '', '')

Thank you for your help.