Can't login to Roundcube after changing IP address of computer

[mediamix]

Roundcube was working properly on my Ubuntu 16.04 server until I had to change the static IP address of the computer it was installed on.
The computer is also our web server and email server and those are working fine.

Now I can reach the roundcube login page, but when I put in any valid username/password,  I get "loading...." and then after 30-45 second I get "connection to storage server failed"

Any idea of what I need to change to get Roundcube working?

Thanks in advance for any help.

[SKaero]

That means Roundcube is unable to connect to the imap server you have configured. Depending on how you have that setup you may need to change the imap server to the new ip or change what ip the mail server is listening to traffic on.