Make your VLC player connecting RTSP streams default with RTP over TCP mode

VLC media palyer version: 2.0.8 Twoflower

Follow these steps to set your default setting:

Tools –> Preferences –> Input & Codecs

Find “Network” settings, and check RTP over RTSP (TCP) option, then restart/reopen your rtsp network stream, done.

Make your VLC player connecting RTSP streams default with RTP over TCP mode

If you capture the RTSP SETUP request buffer, your should see a command like this:
SETUP rtsp://192.168.1.106:5554/1/trackID=1 RTSP/1.0
CSeq: 4
User-Agent: LibVLC/2.0.8 (LIVE555 Streaming Media v2013.08.06)
Transport: RTP/AVP/TCP;unicast;interleaved=0-1