I’m not certain which setting would impact this, but i’m wondering if it is denying the connection due to the redirect. Check your advanced settings, read the help page for these options and see if any of these change how it behaves. It sounds like the redirect is being blocked for some reason.
Also make sure you’re using the correct protocol. HTTP vs HTTPS. I see you have HTTP in your link, but if you’re actually using HTTPS you need to make sure that’s right.
EDIT: Just a note here, you would have to redirect the URL To open in a new window from what i’ve gathered (as opposed to embed) and from the other comments in here. But i don’t see why the URL shouldn’t work out of the dashboard at least as a link.
No, I’m just saying you should be able to add a link to your BI GUI in your dashboard that you could select to open it. Maybe i misunderstood the original request.