Is it possible to change the IP address of checkmk server

Hi,

Today created a test Ubuntu 20.04LTS VM and installed Checkmk Raw Edition 2.1.0p18 and then changed the IP address of Ubuntu after which I am able to access the VM but unable to access the Checkmk GUI.
Also, I am accessing the GUI with server name and server name is as it is. Only we have changed the IP.
If I roll back to original IP , able to access the GUI but when the IP is changed GUI is not accessible.

1.My firewall is disabled.
2.omd status is running.

What else need to be checked , please guide me!!

BR
//Prachi