If you go into settings, connections and then click the settings cog alongside your WiFi connection there is a quick share setting that lets you share your WiFi connection with others so they don't need the password e.g with a link or a qr code etc. There is also a setting that lets you log into and manage your router should you want to change your router settings etc only do this if you understand the settings, if you mess up your router it will mess up your internet. Hope this helps