Development erpnext

if i start up the erpnNext and login with the standard credentials and do a ip addr and see the adress is and is in the same network range as my pc. I go to my browser an type in the ip adress than the page is not loading. port 8000 nothing port 8080 nothing. In the production is everything going well.

link/ether 08:00:27:19:45:93 brd ff:ff:ff:ff:ff:ff
inet brd scope global enp0s3

Thanks for the supply