Dell U3224KBA User Manual page 116

Problem
When press
either Volume
down / Volume
up or Mute
button, LED
does not blink
Webcam or Mic
not working
Ethernet port
(RJ45) cannot
connect to
internet
No sound
coming from
the speakers
116 | Troubleshooting
What you
experience
When press
either Volume
down / Volume
up or Mute
button, LED
not blink when
connected to
HDMI or DP only
Webcam or Mic
not working
when connected
to HDMI or DP
only
Ethernet port
(RJ45) cannot
connect to
internet on Win
10 / Win 11
No sound
coming from the
speakers when
play audio/video
on your system
Possible solutions
Connect USB-A to USB-C cable
Connect USB-A to USB-C cable
Change the LAN Controller Power Saving from
Enable to Disable
• Ensure that you have set the default playback
device as Echo Cancelling Speakerphone
U3224KBA or DELL U3224KBA on your system.
• Turn Off the monitor, unplug the monitor power
cord, replug it, and then turn on the monitor.
• Reset the monitor to Factory Settings.