connecting printer to new modem

[CathiGG]

I am trying to connect HP Laser Jet Pro MFP M125nw to new wireless modem ( Hitron CGn3).   I press the wireless button o the printer, and the WPA on the modem, it searches and says connection established.  When I go to print it still says printer off line.  Tried turning equipment off, re - searching for connection several times.  Help please - printer was working just fine with old modem and router. 

[Jeet_singh · Accepted solution]

Hi @CathiGG,

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I came across your post and wanted to assist you. Don't worry as I have a few suggestions which should help you to resolve this concern,

Let’s try these couple of steps which should help us in resolving this issue:

Print a Network Configuration Report or Wireless Test Report from your printer.
If your printer has a control panel with a display, print the report from the network settings or network setup menu.

If your printer does not have a display, print the report using the buttons on the printer control panel. For many HP printers, this is done by pressing and holding the cancel button or a combination of buttons on the control panel until a report prints. For more information on how to print a report for your printer model, see the User Guide or search the HP website for network configuration report and the model of your HP printer.
On the report printout, look at the network status for your network connection type (wired or wireless.)
If the status is connected, continue with these steps.

If the status is anything other than connected, such as off or Disabled, then the printer is disconnected from your network. This is the reason your printer is offline. You must connect the printer to your network before you continue. For more help on how to set up a connection to your network, see the User Guide, search the HP website for your printer model and wireless or wired network install, or use the wireless setup wizard from the control panel of your printer if available.

On the report, find the IP Address, subnet mask, and Default Gateway for your active (connected) network connection type. If your report has separate numbers for IPv4 and IPv6, then use the numbers listed in the IPv4 section.
From a computer connected to your network, find the URL(s) for Embedded Web Server (EWS) on the report and enter the URL into your Internet browser. If the web page appears blank, use a different Internet browser.

Click the Network or Networking tab, and then open the section or page for your network type: wired or wireless.
Click Manual IP.
If you see a Suggest a Manual IP Address button, click Manual IP address, and the Manual IP addresses are automatically filled out for you.

If your page does not have a button to suggest a manual IP address, type the IP address, subnet mask, and default gateway using the numbers shown in the report you printed.
Write these new numbers on a piece of paper. You might need to use them later when adding a second printer device.
Click Apply, and then wait until the changes are confirmed.

Refer this document to further troubleshoot printer offline issues.

Please respond to this post with the result of your troubleshooting. I look forward to hearing from you. 

If you wish to help others looking for the same solution as you've found, mark the post as Accepted Solution.

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And I Hope you have a good day, Ahead.

Regards,