I just installed a second cam on my Pi but can't access it. I looked with lsusb and 2 cam's where shown. On webserver I only find 1 usb-port to connect. I'm thinking over what I'm doing wrong. Normally if I connect a second cam port 8081 is accessible and shows up second cam. I tried also Ip 192.168.1.serverIP:8081 what should provied the control of mjpg-streamer. Reboot and restart of webcam server didn't help. Hmm. Any suggestions?