Hi there, @Bernard.
First, may I confirm if the link you mentioned ("vault.api.intuit.com") is associated with your bank, or is that an error you're seeing? If not, please share the name of your bank and any specific error message or code that appears on your screen when linking your bank account. This information will help us understand the situation better and provide you with the right guidance to resolve it.
In the meantime, I recommend visiting your bank’s official website to check if they have posted any messages, notifications, or security updates that might be affecting your ability to connect. Sometimes banks have temporary issues or security measures in place that can affect certain connections.
Feel free to reach back out if you have any further questions.
