GemiBook Pro J4125 can't connect with streaming server

Windows 11 Home . Trying to stream using MIXXX dj software. settings are correct and confirmed by their developers. AT&T opened a passthrough to this computer, verified username and password, reset & restarted all devices. They sent out a technician who could not find a reason why it does not connect to ingest.live365.com . I did have to manually open ports 8000 & 8001 but the port checker says they are closed.