You will need your corporate network IP address range to be whitelisted on your Enterprise Insights instance by Atlassian. Please get in touch with your Technical Account Manager (TAM) or Enterprise Advocate (EA) for assistance.
There are two authentication options available: Azure Active Directory (AD) authentication and SQL login (username and password provided by Atlassian).
Azure AD authentication is recommended due to it being more secure. If you are using Azure AD, your Azure AD tenant must be enabled for guest authentication tenant access to allow authentication with Enterprise Insights. You can learn more on Microsoft’s website here.