How to find out my internet password if i'm logged in?

I have a new iphone and i want to have internet but i don not know the password. On my computer its logged in a long time ago but on the iphone its not. I've already tried to write 192.168.1.1 and then username: admin password: admin or username: admin password:1234 or username: admin password: password. It just doesn't work!

Look up the default password for your router with a google search, unless your router is a model that isn't popular it should be there. If you set a password on your router(I'm talking about the login page, not for your Wi-Fi) it can be reset by holding the reset button on the back down. It's been a long time since I've set up a router's wireless network as I don't use Wi-Fi for anything but I think resetting it may also clear your Wi-Fi password. If you're not sure what I'm talking about look for a button on the back of your router that requires something narrow to push, hold that down until the router resets and it will be restored to factory defaults.