My workforce printer was operating wirelessly for quite a while then stopped. I have been trying to get it to work again and have had no luck. After about 15 tries to set it up and seeing " an unknown error has occurred" I got an message last night after trying one last time that read "Router set to 802.11N with WPA-PSK (TKIP) security is not supported". I uploaded the latest updates from the printer manufacturer's website and still nothing. My printer is a mod C11CB07201. Router is FiOS mod G1100. Can someone advise what I could possibly do besides buying a new printer. Thank you very much.