User`s guide

133Troubleshooting
My Dell Machine is not Found on the Network Even After Successful Installation.
Cause Action Interface
Your security software blocks
your machine's access to the
network.
Some security software might block access without showing a
security alert dialog box even after successful installation.
To allow access, see the instructions for your security software or ask
the manufacturer.
Wired/Wireless
Your Dell machine is not
assigned with an available IP
address.
Confirm the IP address and the Subnet Mask.
Verify that both the IP addresses and Subnet Masks of your computer
and the Dell machine are correct and located on the same network.
For more information on how to verify the IP address and the Subnet
Mask, ask your network administrator.
Wired/Wireless
Your Dell machine is not
connected to the network
using wireless capabilities.
Print the WLAN Report to check the error code on the printed
report.
Wireless
If you have checked and tried all of the above, but your Dell machine is not found on the Network, uninstall the
printer driver and reinstall it.
My Security Settings are not Working Properly.
Cause Action Interface
During installation of the
printer driver, or when using
the printing features, you did
not accept the security alert
dialog box.
If you did not accept the security alert dialog box, the firewall
function of your security software may be rejecting access.
Some security software might block access without showing a
security alert dialog box.
To allow access, see the instructions for your security software or ask
the manufacturer.
Wired/Wireless
The required port number
for the security software
setting may be closed.
The following port numbers are used for Dell network features:
• Network printing
*1
: Port number 161 and 137/ Protocol UDP
For more information on how to open the port, see the instructions
for the security software or ask the manufacturer.
Wired/Wireless
*1 Windows
®
I Want to Check that My Network Devices are Working Correctly.
Check Action Interface