If still no internet, log the device back into the wifi network. Set Advance Settings to Proxy None and Connection Static -> enter valid IP Address. Try opening your browser on the device. I tried this for my device when connected to the wifi network but no internet access and it worked. Hope this helps.
Connected to Wi-Fi, But No Internet Access in Windows Dec 09, 2019 Fix: No Internet Connection on Windows 10 - Appuals.com May 09, 2019 [Solved] There is no Internet connection on computer
Computer connected to network, but NO internet access
Jan 31, 2020 Fixing Internet Connection Problems - Cox Communications If you're having trouble connecting to the internet, use the following information to resolve common issues. If your services aren't working, then check for a network outage. If there is no outage in your area, then reset your modem. Still having trouble? Use the following to resolve the issue.
Usually it's Roger's fault! But, other times it has to do with a broken internet connection in your computer. reboot your modum and reset it. Also your registry keys may have been changed and cleaning out clutter, defrag etc., can often correct the problem. This works for me 99% of the time.
How to fix "no Internet secured" Wifi connectivity issues