Dell U2723QE Monitor Simplified Service Manual - Page 21

6. Trouble Shooting Instructions Problem What you experience Possible solutions The LAN port is OS setting not functioning or cable connection issue • Ensure that the latest BIOS and drivers for your computer are installed on your computer. • Ensure that the RealTek Gigabit Ethernet Controller is installed in the Windows Device Manager. • If your BIOS Setup has a LAN/GBE Enabled/ Disabled option, make sure it is set to Enabled. • Ensure that the Ethernet cable is connected securely on the monitor and the hub/router/ firewall. • Check the status LED of the Ethernet cable to confirm connectivity. Re-connect both ends of the Ethernet cable if the LED is not lit. • First power off the Computer and unplug the Type-C cable and power cord of the monitor. Then, power on the computer, plug in the monitor power cord and Type-C cable. U3023E cannot 2nd monitor • Switch USB-C Prioritization from High Data set to 2560 x displayed image Speed to High Resolution. (USB speed reduce 1600 @ 60Hz cannot set at to 2.0) in Daisy chain 2560 x 1600 • Switch PC that supported DP1.4 mode in DP1.2 @ 60Hz when (DSC Disable) set MST On and USB-C Prioritization (High Data Speed) U3023E connected as 3rd monitor cannot set to 2560 x 1600 @ 60Hz in Daisy chain mode in DP1.4 (DSC Disable) 3rd monitor • Switch USB-C Prioritization from High Data displayed image Speed to High Resolution. (USB speed reduce cannot set at to 2.0) 2560 x 1600 @ 60Hz when set MST On and USB-C Prioritization (High Data Speed)