Is it still a problem for you. I was just able to connect no problem. When this happened to me before it was just the main page, but sub pages would open. Try this page: https://codex.buddypress.org/home/ or https://codex.buddypress.org/how-to-guides/creating-a-custom-buddypress-component/ and then use the breadcrumb navigation. At least that’s what I had to do before.