How do I do a HARD RESET on an HP OJP 7740?

[JoelinIowa]

I've moved to a new ISP.  I haven't gotten around to setting up my own router.  My ISP router is doing 1802.11xxx.  The base network it is servicing is on 192.168.0.1/24  My OJP7740 is still on my old 192.168.1.20/24 network.  I'm an IT security guy, I have all the interfaces LOCKED. (dumbass)

Is there a "magic key command" to do a HARD RESET on this device?   I know there is, I haven't messed with it in Years.  I'm stuck...  I'll appreciate any assistance. 

Thank you!

JLH 

[Echo_Lake]

@JoelinIowa

Thank you for posting on the HP Support Community.
 

Don't worry as I'll be glad to help, I appreciate your efforts to try and resolve the issue. 
 

Is your router dual-band enabled i.e., both 2.4GHz and 5GHz? If yes, make sure the dual-band has different SSIDs for 2.4G and 5G networks.

Let's restore the printer to the original network settings:

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!