Check the username and password. Both values are case-sensitive. Also, confirm that you are using the credentials for the correct environment, and that the SASL mechanism matches the one provided by Upvest.
Confirm the bootstrap server hostname and port match what Upvest provided, and that your network allows outbound TCP to the broker. Check any corporate firewall rules.
Verify the topic name matches exactly, as names are case-sensitive. If a topic should be accessible but is not, contact your Upvest representative.
No custom certificate is required on your side. Make sure your runtime's system CA bundle is up to date, and never disable TLS verification in production.
For access requests, credential issues, or integration questions, contact your Upvest representative or your agreed support channel.