i can connectect to my wifi but after about a half minute it says authentication error. please help!

Solution
Try rebooting the modem, and while it is rebooting then clear the WiFi data for that connection on the phone. Restart the phone and then, once the modem is fully booted, then re-input the WiFi info on the phone and see if it will resolve the problem.

Try rebooting the modem, and while it is rebooting then clear the WiFi data for that connection on the phone. Restart the phone and then, once the modem is fully booted, then re-input the WiFi info on the phone and see if it will resolve the problem.

 
Solution