After changing the hostname of a system, you may not be able to access the up.time UI due to the hard-coded hostname configuration in the uptime.conf file.
To resolve this issue, ensure that the following parameters in the uptime.conf file are set to the resolvable hostname for the system:
dbHostname=<hostname>
httpContext=http://<hostname>:9999
uptime.conf:monitorHost=<hostname>