-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Printers
- LaserJet Printing
- HP Laser Jet Pro 400 color M451dw printer offline.

Create an account on the HP Community to personalize your profile and ask a question
07-16-2019 04:52 PM
HP Laser Jet Pro 400 color M451dw is offline. Wireless connectivity confirmed by IP address but still offline. Can print only via USB cable. How can I bring this printer online for wireless printing?
Solved! Go to Solution.
Accepted Solutions
07-16-2019 06:39 PM
Check the type of port that windows is trying to use to communicate. On your PC, go to control panel, devices and printers. Right click the icon for the wireless printer and select properties. Click the port tab and see what type of port is being used to communicate. If it starts with WSD followed by random numbers, this is likely your issue. Click add new port, select TCP/IP port and enter the IP address of the printer and click ok once it creates the port.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.
07-16-2019 06:39 PM
Check the type of port that windows is trying to use to communicate. On your PC, go to control panel, devices and printers. Right click the icon for the wireless printer and select properties. Click the port tab and see what type of port is being used to communicate. If it starts with WSD followed by random numbers, this is likely your issue. Click add new port, select TCP/IP port and enter the IP address of the printer and click ok once it creates the port.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.