Click on the ^ carat to expand the open applications:
Right click on the icon that looks like the one circled in Red:
Now, select Tools and Reset DNS to DHCP as illustrated below:
You should now see this screen and will click “Yes”:
That will open a Powershell windows such as this:
Once it completes, it will disappear and you should now be ready to try getting to the Internet again. If this does not work, please open a Helpdesk ticket at Helpdesk