HP Officejet once was set up wireless, and worked, after one month, it will not connect to router?

I have been working with this new HP all in one wireless printer, and was working great, then one day out of the blue it stopped. I can't print out a thing, and when checking on why it stopped, it first printed out that it was not connected to the radio connection, which I thought was Bogus, then after working on it a little more, I went to the wps on the router and held down the WPS, as was requested for 3 seconds, but when I returned to the printer, it all looked as though it was downloading until it got down to 7 seconds, then it stopped and refuses to connect to the router. Does Anyone have any Ideas on how to fix this issue or, tell me what I maybe doing wrong???? This is Now driving me insane. I am connected to an HP Computor, it appears that the router maybe the problem, so I need HELPPPPPPPPPPPPP! Please, thank's to anyone who can suggest the right fix for this printer.