Follow the steps below.
You can use the camera utility which is contained on the User’s Manual CD to search the ICA-5250V on your network. If laptop has many different networks (e.g. 192.168.1.x and 192.168.0.x) , this camera utility also can search camera in different networks.
Maybe the NAT router does not support the UPnP function. Please check user's manual of router and turn on the UPnP function.
If a firewall exists on the network, port 80 is open for ordinary data communication. The HTTP port and RTSP port need to be opened on the firewall or NAT router.
Make sure that your Internet Explorer is version 8.0 or later. If you are experiencing problems, try upgrading to the latest version of Microsoft’s Internet Explorer from the Microsoft webpage.
Please follow the steps below: