Samsung Galaxy S6 proxy server settings stopped working I can't repair

Hey Terri, I have two options for you to try:

Option 1

Did you try factory reset yet? If not:

-Open the Settings menu.

-Go to ‘User and Backup’.

-Tap on the ‘Backup and Reset’ section.

-Press ‘Factory data reset’.

-Confirm that you wish to Factory Reset your smartphone.

-Enter the alternative password for your device.

-This will erase your phone(music, apps, etc.)

-This also confirms whether this is a software or hardware issue.

Option 2

Go to settings and click on Wi-Fi. Then chose the network you want to connect to. Press it down for about 2 seconds and a window will pop up. Choose Modify Network. Scroll down to show advanced options. Click on it.Under proxy settings click on none and click save.

-Let me know how it goes.

-Please accept this answer if it answers your question.