My ImageClass MF753cdw was previously connected to our wi-fi with no issues, but now it will not connect. I have unplugged the printer, unplugged the router and still nothing. When I go into the menu to set up the network, it says that it cannot connect and to check the encryption key. The encryption key has not changed and I know it has been entered correctly. Why will it not connect and why cannot get it to "forget" the network and start fresh?
