You can probably accomplish that most easily by a router configuration change. Do you want to block all network access, Internet access, or specific times/sites?
You can probably accomplish that most easily by a router configuration change. Do you want to block all network access, Internet access, or specific times/sites?
Once you change the password then only give it to those that you want on the network.
Many routers have QOS (quality of service) settings that you can set to limit the speed or times that specific users can connect. Check your router manual to see if you have this feature.