Lexmark PRO4000C, 90P3000 Cannot print over wireless network, Setup OK Demo Mode OK Off OK

Troubleshooting 166

3Press the left or right arrow button to scroll to Yes, and then press OK .

The printer restarts automatically after resetting the wireless settings to factory defaults.

4When prompted to set the initial settings of your printer, make your selections using the printer control panel buttons.

Initial Setup Complete appears on the display.

Cannot print over wireless network

If you encountered problems while installing, or if your printer does not appear in the printers folder or as a printer option when sending a print job, then try uninstalling and reinstalling the software.

Before you reinstall the software, check the troubleshooting checklist, and then do the following:

TURN THE ACCESS POINT (WIRELESS ROUTER) OFF AND THEN BACK ON

Wait one minute for the printer and computer to reestablish the connection. This can sometimes refresh network connections and resolve connectivity issues.

DISCONNECT FROM VPN SESSION

When you are connected to another network through a VPN connection, you will not be able to access the printer over your wireless network. End your VPN session, and then try printing again.

MAKE SURE DEMO MODE IS TURNED OFF

Select printer features are not available when Demo Mode is turned on.

From the printer control panel, navigate to:

> Setup > OK > Demo Mode > OK > Off > OK

CHECK YOUR WEP KEY OR WPA PASSPHRASE

If your access point is using WEP security, then the WEP key should be:

•Exactly 10 or 26 hexadecimal characters. Hexadecimal characters are A–F, a–f, and 0–9. or

•Exactly 5 or 13 ASCII characters. ASCII characters are letters, numbers, and symbols found on a keyboard. ASCII characters in a WEP key are case‑sensitive.

If your access point is using WPA or WPA2 security, then the WPA/WPA2 preshared key/passphrase should be:

•Exactly 64 hexadecimal characters. Hexadecimal characters are A–F, a–f, and 0–9. or

•From 8 to 63 ASCII characters. ASCII characters are letters, numbers, and symbols found on a keyboard. ASCII characters in a WPA passphrase are case‑sensitive.

Note: If you do not know this information, then see the documentation that came with the access point, or contact your system support person.