Cannot Print And There Is A Firewall On The Computer - Lexmark Pro915 User Manual

3
After one minute, reconnect the power cord into the power supply, and then plug the power cord into the wall
outlet.
4
Turn on the printer.
R
UN THE INSTALLER AGAIN
1
Close the installer.
2
Remove the CD, and then restart the computer.
3
Insert the CD, and then run the installer again.
M
AKE SURE YOUR COMPUTER IS ABLE TO ACKNOWLEDGE
Open the Device Manager to check if it has activity whenever a USB device is connected to a USB port:
1
Click , or click Start and then click Run.
2
In the Start Search or Run box, type devmgmt.msc.
3
Press Enter, or click OK.
4
Watch the Device Manager window while connecting a USB cable or another device to the USB port. The
window refreshes when the Device Manager recognizes the USB connection.
•
If there is activity on the Device Manager but none of the previous solutions worked, then call customer
support.
•
If there is no activity on the Device Manager, then there may be a problem with your computer and its USB
support. The computer must recognize the USB connection in order for installation to work.

Cannot print and there is a firewall on the computer

Third‑party (non‑Microsoft) firewalls can interfere with wireless printing. If the printer and computer are configured
correctly, and the wireless network is working, but the printer will not print wirelessly, then a firewall could be the
problem. If there is a firewall (other than the Windows firewall) on the computer, try one or more of the following:
•
Update the firewall using the most recent update available from the manufacturer. Refer to the documentation
that came with your firewall for instructions on how to do this.
• If programs request firewall access when you install the printer or try to print, make sure you allow those
programs to run.
•
Temporarily disable the firewall and install the wireless printer on the computer. Re‑enable the firewall when
you have completed the wireless installation.
Communication with printer lost when connected to Virtual Private Network
(VPN)
You will lose your connection to a wireless printer on your local network when connected to most Virtual Private
Networks (VPNs). Most VPNs allow users to communicate with only the VPN and no other network at the same time.
If you would like to have the ability to connect to your local network and to a VPN at the same time, the system
support person for the VPN must enable split tunneling. Be aware that some organizations will not allow split
tunneling due to security or technical concerns.
USB
ACTIVITY ON THE
Troubleshooting
168
USB
PORT