Why does a server appear offline in HA server table UI?

Why does a server appear offline in HA server table UI?

AuthorFullName__c: JFrog Support
articleNumber: 000001416
ft:sourceType: Salesforce
FirstPublishedDate: 2016-10-06T13:38:22Z
lastModifiedDate: 2023-02-26T15:08:50Z
VersionNumber: 3

This issue can be due to a time difference between the two HA servers.

Syncing the hours between the servers will resolve this issue.