My (new) KF connected to my home wifi with no problems. I can send and receive email, browse webpages, etc, but every few minutes or so I get a pop up saying I need to sign in: "Sign-in Required" The wi-fi network you are connecting to requires you to sign in before accessing the internet. Would you like to sign in?" I select Ok and the pop up goes away for awhile but always comes back.

Any suggestions? Router settings?

thanks