LOL I dont mean a factory reset. I mean just a simple restart, usually a setting under utilities that will just refresh your router (not change or remove any settings). Sometimes by doing that I've had friends trying to use my network able to use after the refresh.
And as far as the unsecured... I have a Guest Access tab on my router settings that will allow me to make sort of a separate network with a hotel style password (Simple word or something). You could try at a McDonalds or Burger King or even Starbucks if you have one around your house. The only reason I say to try this is so you know that its not just secured networks and not all networks.