Thanks for quick reply!
The URL I got from system configuration, log in via web browser to 192.168.1.102:81/index.htm and use “server push mode” on chrome
camera configuration -> network settings -> basic network settings
there is says RTSP URL which is the URL I quote in first post
I got the camera working last night using custom URL http://192.168.1.102:81/videostream.cgi?user=USER&pwd=PASS but could only use MJPEG or MPEG4 stream and 640x480 resolution
today I try ONVIF source and it found camera so i added it but still no picture.
I then disconnect all cameras, changed port to 554 and restart NetCam Studio
I add camera again using ONVIF and click save
I still have no picture so I checked custom source and it say RTSP_TCP feed and url rtsp://USER:PASS@192.168.1.102:554/TCP/av0_0
i change feed to UDP and also adjust URL and now it works great, thank you very much for your help!