User Manual 19 < back to the table of contents > PC/Laptop COM-Module Router with DHCP server Ethernet/WLAN Ethernet Figure 12: Establishing a Web UI connection via a router with DHCP server Info! Currently, only the Eth0 interface is available! 5.1.2 Connecting to the Web UI Without a DHCP Server A connection between a Windows computer and the COM-Module can also be established without a DHCP server. In this case, communication takes place via a direct Ethernet connection. Initial Connection via Ethernet For first-time access, the COM-Module connects to the network using an Ethernet cable. Please note the following: • Only use the lower Ethernet socket (Eth0) of the COM-Module. • The schematic setup is shown in Figure 13. COM-Module PC/Laptop Ethernet Figure 13: Establishing a direct connection with a PC/laptop Info! Currently, only the Eth0 interface is available! Wi-Fi Connection Connecting the COM-Module to an existing Wi-Fi network is only possible after a successful Ethernet connection. Wi-Fi configuration is described in Chapter 12.1.3 Configuring the Wireless Network (WLAN). Network Configuration in Windows To access the COM-Module, the network settings of the Windows computer must be adjusted as follows: 1. Open the Control Panel. 2. Navigate to: Network and Internet → View network connections 3. Select the Ethernet interface in use and open its properties. 4. In the properties, enable the option “Obtain an IP address automatically” for both Internet Protocol Version 4 (TCP/IPv4) and Internet Protocol Version 6 (TCP/IPv6).
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