To control STT/STX/L cameras via network, it is necessary that your PC and camera are on the same subnet, otherwise camera will not be recognized. That's why, it is recommended for the first time to connect your camera to the PC via USB cable, run CCDOps to set a default IP and gateway address, then reboot the camera for the new address to be active. Connect your PC and camera to your router with active DHCP server using Ethernet cable. Also connect your PC and camera with USB cable. Start CCDOps ->Misc -> Graphics/Comm Setup -> Interface Ethernet -> Address: 0.0.0.0, than press Detect button. Verify Select USB/Ethernet Camera is showing your camera model and serial number. You should see current IP address, in my case : 10.0.0.145 Click OK to close the Misc Graphics/Comm Setup window and disconnect the camera from the USB interface. Now, you can establish link to your camera using that IP address. Instructions for connecting the camera using a switch or crossover cable. (rewritten from David Morrow) Disconnect the computer from the router or LAN. Connect the camera direct to the PC with a crossover cable or connect the PC to a switch port 1 and connect the camera to switch port 2. Open Windows Network Sharing Center (Win 7) Select Connections: Local Area Connection. Local Area Connection window select Properties. Local Area Properties window Networking tab double click Internet Protocol Version 4(TCP/IPv4). In the Internet Protocol Version 4(TCP/IPv4) window click Use the following IP address. IP Address: 192.168.0.1 (This is the PC address), Mask 255.255.255.0,Default Gateway: 192.168.0.2 (This is the camera address) DNS all blank, Ok, Ok, Ok, Close Open CCDOPS connect USB cable to the camera and select USB in Misc Graphic/Comm Setup. Establish a link. Go to the Camera dropdown menu and select STX/STT IP Properties. Uncheck Enable DHCP. IP Address: 192.168.0.2, Gateway: 192.168.0.1, Net Mask: 255.255.255.0, TCP/IP 5000, HTTP Port 80, OK Power camera off and on to load new address. Open Misc Graphis/Comm Setup and select Interface Ethernet. Set Ethernet Address: 192:168:0.2 Auto Detect does not work, click OK. Establish Link. Link status is shown bottom right on the CCDOPS toolbar. You can aslo connect using a web browser. IE may require you to use HTTP. http::// 192:168:0.2 To return the computer back to normal network use. Open Windows Network Sharing Center (Win 7) Select Connections: Local Area Connection. Local Area Connection window select Properties. Local Area Properties window Networking tab double click Internet Protocol Version 4(TCP/IPv4) In the Internet Protocol Version 4(TCP/IPv4) window click Obtain an IP address automatically. Also click Obtain DNS server address automatically.OK, OK, Close.