Accessing Netcam Studio outside of local network

I have a setup where various old android devices are connected to my netcam server running on my windows machine. I am trying to access my server via a ngrok tunnel. When i open the rndom url string i see the web interface and the logs say anonymous user. But even with firewall exceptions i can’t access my server. It keeps saying login failure and unknown error. Eventually the connection times out. Any ideas how i can solve this issue?

Have you tested without the ngrok tunnel so that works?
Make sure you do not enable https on the web ligin page.