Hi @Jyothi
Welcome to the community.
Is it server/datacenter version? Is Jira up? Please provide more details.
Welcome to the Atlassian Community!
I assume this means you are trying to reach a Jira over a network.
Localhost means "this computer", so it will not be able to reach a Jira on another computer.
Why are you trying to use localhost on a Cloud system?
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