Dell P2425HE Monitor Users Guide - Page 101

USB-C, Prioritization, Data Speed, If your BIOS Setup has a LAN

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No video at HDMI/ DisplayPort/USB Type-C port No network connection The LAN port is not functioning When connected to Unplug the HDMI/DisplayPort/USB some dongle/ Type-C cable from dongle/docking docking device at device, then plug the docking the port, there is no HDMI/DisplayPort/USB Type-C video when cable into the notebook. unplugging/plugging the cable from the notebook Network dropped or • Check to ensure USB-C intermittent Prioritization is set to High Data Speed. • Do not turn off the display during network connection. OS setting or cable • Ensure that the latest BIOS and connection issue 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/ firewal l. • 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 USB Type-C cable and the power cord from the monitor. Then, power on the computer and plug the power cord and the USB Type-C cable into the monitor. Troubleshooting │ 101

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Troubleshooting± ±
│
± ± 101
No video at HDMI/
DisplayPort/USB
Type-C port
When connected to
some dongle/
docking device at
the port, there is no
video when
unplugging/plugging
the cable from the
notebook
Unplug the HDMI/DisplayPort/USB
Type-C cable from dongle/docking
device, then plug the docking
HDMI/DisplayPort/USB Type-C
cable into the notebook.
No network
connection
Network dropped or
intermittent
•
Check to ensure
USB-C
Prioritization
is set to
High
Data Speed
.
•
Do not turn off the display during
network connection.
The LAN port is not
functioning
OS setting 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 USB Type-C cable and
the power cord from the monitor.
Then, power on the computer and
plug the power cord and the USB
Type-C cable into the monitor.