error:Server not found

i can’t open the webapp of the machine even the port 80 is open and i can ping it .

Tips to fix-

Check your internet connection and router.
Restart your computer.
Use an Incognito or private browsing window to navigate to the site.
Set the browser to open pages in a new tab or window.
Disable your virtual private network (VPN) and antivirus software.

Regards,
Rachel Gomez

Try to clear your browsing data.