Tatiana, I'm trying to reproduce your issue, can you tell me more? I assume that you changed machine IP in network adapter settings and maybe restarted this machine. That's all you changed?
How are you trying to connect with console? I tried similar scenario and connecting by new IP address or https://localhost works (if it worked from the start, it needs to be set during installation). I checked it on chrome and firefox, certificates could be handled differently between those.
Do you remember what host did you set during the original installation of EEI Server? If you used GUI installer, you probably created it in the installer on those pages: https://help.eset.com/eei/1.3/en-US/?get_the_certificate_from_esmc.html. By default it is machine name, "localhost" and machine IP.
