The Entra Id, tenant id, is not working when i try to connect to point to site VPN Gateway.

Hello @John Zimmerman,

Welcome to Microsoft Q&A Platform. Thank you for reaching out & hope you are doing well.

I understand your question regarding the issue with connecting the Azure VPN Client to the Azure Gateway using Point to Site and the Azure VPN Client.

I recognize how important this connection is for your work. Here are some quick steps that may help resolve the problem:

1. Re-authenticate in Azure VPN Client: Clear saved account credentials under settings or sign out completely, then sign in again.
2. Verify Tenant ID and Issuer URL: Confirm the Issuer URL follows the format https://login.microsoftonline.com/<TenantID> without a trailing slash.
3. Update VPN Client and Profile: Download and install the latest Azure VPN Client and configuration profile from the Azure portal.
4. Check App Registration & Permissions: Ensure the Azure VPN Client app is properly registered in your Entra tenant and has necessary API permissions for authentication.
5. Review Conditional Access Policies: These policies can require periodic re-authentication or block access if conditions are unmet.

For detailed guidance, please see the below links:

Troubleshoot Azure VPN Client - Azure VPN Gateway | Microsoft Learn

Configure P2S VPN gateway for Microsoft Entra ID authentication: Microsoft-registered client - Azure VPN Gateway | Microsoft Learn