Page 12 of 20 W1 Product Manual 1.34. Choose the “Network Mode”. Normally “DHCP” is recommended, in this case the existingnetwork will assign an IP address to the W1. “Fixed Address” would force the W1 to usethe fixed IP address. Depending on your network, this may lead to address conflicts.5. Press “Save and Reboot” to save your entries and let the device reboot.6. After the reboot the device will connect to your network. To access the data stream or theconfiguration interface, you will need to use the new IP address. You can find the assignedIP address by checking the device list of your router/network or by using the “WiFi ModuleUtility” supplied on the W1 data card. You should create a Lease for the device on this IPaddress, then every time it connects it uses the same IP address.7. If you get no access to the Nauticast W1, you can always do a hard reset to factorysettings with the small button beneath the WiFi antenna (press for 5 sec).2.3 Serial WiFi Options (Data transmission mode)In the Serial WiFi menu you can choose between TCP and UDP as the data transmission mode.TCP will establish a 1:1 connection from the W1 to just one counterparty. The data stream ismonitored and secured against data losses.UDP will allow you to stream data to multiple recipients (1:n) in one direction. Use this mode if youwant to stream data to multiple devices like a Notebook and a mobile phone. However there is noprotection against data losses and no information can be sent from the network to the NauticastW1 and the serial device.2.3.1 TCP Server (default)Most applications use this mode, where the Nauticast W1 acts as a server for the data stream thatcan be opened by just one client device or application.To configure a connected Nauticast B2 with Link2AIS, this mode must be used. For regularoperation you may revert to UDP.2.3.2 UDP ModeThis mode allows to broadcast the data stream into your network to connect several clients. Thedisadvantage is that no information can be sent from the client to the Nauticast W1. As a resultthe initial configuration of the Nauticast B2 via Link2AIS will not be possible.2.3.3 TCP ClientIf you have a TCP Server running, waiting for a data stream, the Nauticast W1 can also act as aclient and open the data stream. Please note this mode is usually not used, only activate it if youhave basic knowledge in TCP streams and are sure this is the correct mode.