Unable to authenticate when installing the Simplisafe integration

I’ve tried MS Edge and DuckDuckGo, ensuring cookies are allowed. But when I get to the part to verify your identity and click “Continue” just hangs. I’ve tried other methods such as password. I also tried adding the Simplisafe integration using my Android phone, and still got errors.

I’ve seen other posts regarding authentication issue, but no solutions. Is it possible to get this integration working?

-Thanks