I had also contacted trendnet support and they sent me this
url:
http://ip address/Streaming/channels/1/httpPreview
This worked for me when I set up SH for the camera manually.
In answer to you questions:
The camera is on a wired gigabit network with an IP address reservation (static IP)
The camera could be viewed with IE 11 (WIN-7 64bit), and ISpy (open source software)
BTW - the camera was detected by SH as an ONVIF camera, but wouldn't connect that way either.
Best regards,
Joe Nowosielski