steps to connect
1. Use a wifi source or a second mobile teether to setup the chromecast device,once the set up is over remember few things
2 .Remeber the name of wifi source and the password of it, also remeber thesecurity protocol used in encryption of wifi earlier used.
3 Now go to your mobile's setting > more > teethering and hotspot > setup.
4. Now you have to rename your mobile's teethering hotspot name same as yo used earlier.
5. Also use same security protocol in encrypting and the same pasword too.
6. Now turn on the hotspot and wait a minute.
7. You will see that the chromecast device will connect to your mobiles's hotspot
8. Now you can use any app that support chromecasting or you can simply mirrorcast screen of your phone.
9. you can even turn off your mobile's data connection after connecting to chromecast and it will still work.
10. Also note that you can not open chromecast setup app after connecting to hotspot becaue it demands a wifi connection but you can use all other functions in other apps. you can also screen cast from sttings menu.
Now a days android phones cover a large market of phones all over the world but when come to some common problems there are certain difficulties that are faced by regular users. One of the greatest problem of the times has come up with a very different type of error noticed by users. The problem faced by users is in connectivity of internet, while connecting to internet many faces problems of showing an error "wi fi authentication problem" in the android devices. During such an error the user enters a correct password but still the problem persists, then user ties to reset router along with resetting passwords or even resetting the phone to default factory settings, but it has been seen that nothing works during such type of error and moreover user also looses their data and applications by resetting their phones to default settings. Here i am going to discuss such a trick that might help you in solving such problem without resetting phone or router. This trick works most of the time if followed correctly but sometime user also reported that this trick is not working, so it is a 95 percent successful trick but may not work in some exceptional cases. So give it a try and who knows this may work for you in a great way so that you may need not to reset your phone to default settings. Here is the trick for you :
If your phone is showing authentication error even on entering correct wifi password then you may try this method.
So first of all go to the settings >wifi> wifi networks> available networks.
Long press the wifi name which is showing error, then options will appear, click on the option to forget network.
Now you go away from wifi source .
Keep moving away from source untill you see only a single wifi strength(only 1 signal bar) in the wifi name.
Now when only one signal is available then click on wifi name
Then popup will prompt you to enter wifi password.
enter the password and get connected
you will notice that your phone will connect to wifi easily.
Now enjoy internet access without any problem. You can also check this video for better understanding the process