Unable to enter wireless password for Laserjet M276nw

[mister_falcon]

I recently switched to a Wifi 6 wireless router (Netgear RAX120) and I am unable to connect my HP Laserjet MFP M276nw printer to it wirelessly.  The printer worked fine with my old router, and I have several devices connected wirelessly to the new router, but the HP will not accept the passcode.  It keeps giving the error "Invalid Passphrase".

I have updated the firmware on both the printer and the router to the newest versions.  I tried connecting them using Wifi Protected Setup, but I got a network error on the printer.  Is there a known issue with this model printer and Wifi 6 routers?  How can I get my printer to connect to the wireless network?

[Kumar0307]

@mister_falcon, Welcome to the HP Support Community!

Are you using a mesh network?

The router is probably not configured in the bridge mode. This could be a NAT issue which means multiple routers are handing out IP addresses and causing a conflict. Bridge mode means the router acts as purely an access point and not a router.

You will have to contact your Internet service provider for assistance with the same.

Hope this helps! Keep me posted. 

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Have a great day! 

[mister_falcon]

@Kumar0307, unfortunately it's  not a mesh network.  The Netgear AX12 is a single Wifi 6 router that I use for my entire house.  My HP printer worked on my older router, and all of my other wireless devices work on the new router.  It's just the HP printer that won't connected because of the "Invalid Passphrase" error.

[Kumar0307]

@mister_falcon

Check the security encryption method on the router. This printer supports WPA/WPA2 security methods. Also, go to Setup > Network > restore network settings and try to connect the printer.

Let me know how it goes.