No internet on multiple computers [closed]

At the time, I am working as a sysadmin in a local school. In a specific classroom I have 28 Windows 10 workstations. All of them are connected to the internet via wireless through a single router. 4 out of all the computers refuse to connect to the internet. What could be the issue ?


I would check if they 1.) are connected via the right SSID, 2.) Are they getting IP addresses via DHCP. (Windows command prompt, the command ipconfig)
If they do have IP’s, can they ping the other computers, can they ping the router.
After all that are they using the right DNS.

Source : Link , Question Author : user515029 , Answer Author : Mark Scheck

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