RTSP Connection Fails from Axis IP Cameras

I am working on an installation that has two Axis IP cameras that I need to blend together. I only had one working for most of the day, but it was going flawlessly using the Video Stream In Top, but after a reboot of both the camera and the Windows 10 Pro machine running the installation, TouchDesigner failed to catch the stream from either camera and no amount of rebooting after that proved successful. The cameras can accept anonymous users, the http stream is available to Microsoft Edge and VLC has no problem with the RTSP feed. Windows Firewall and Defender are as off as I can make them without registry edits (absolutely happy to learn of any Windows 10 registry hacks that will turn off the Windows Defender notifications for good). The Info chop tells me that the connection fails but I can’t figure out why. We are only on site for another day, so stable workarounds (such as NDI or Syphon/Spout) or any insight into what might be causing the connection failures would be most welcome.

Thanks!