I have a Samsung J7 phone. When I originally got it, it would automatically sign onto my wifi as soon as I got home. I recently upgraded my modem, requiring a different password under a new wifi channel designation. By this I mean that the old, now defunct wifi name still shows up and my phone tries to login to that unsuccessfully instead of automatically logging in at the new address. Is there a way to force my phone to login at the new address instead of having it tell me it can't login at the old address, at which point I must go to Settings and do it manually every time I arrive home?