Oracle vm --auto updating new IP's

i bought Ansible and few other courses in Udemy.
i have followed the instructions and setup the Oracle VM’s for Ansible course.
after sometime the IP’s of all virtual boxes are changing to different ones and this is happening very frequently.

please let me know what i need to do fix it

Hello Dyapas,

Can you share you network configuration settings, is it set to NAT or bridge?
You have to set it static IP’s in network configuration files, incase you want the same IP to be persistent.