I felt like a parasite hacker. The iPhone’s parents discovered a neighbor’s wireless network. Well, I am on the old line 1234... etc. I enter and OP is a contact. Checked the speed is not ice, although this operator has the speed at least several times higher. I entered the IP on the router and miraculously the password turned out to be the same. In the settings found the login and in Chrome checked the password under the stars. He entered the personal office and changed to a much faster tariff for the same money!