Several similar posts, but none of the solutions have worked for me. Have reset the Roku, restarted the box, etc. Still keep getting the 14.40 error. Roku is about 3’ from the router. Every other device in the home will connect with the same password. Internet provider is Cox, if that helps. Would have bought an Amazon stick had I known what a hassle this is. Own several Roku devices, but apparently they offer no support. Any suggestions appreciated.