How do I fix error 279?

How do I fix error 279?
Restart Your Router

Unplug your modem and internet router from the power socket.
Wait 15 seconds.
Plug the modem back into the socket and wait for a minute or two.
Turn the router on.
Wait for the modem’s lights to become green.
Connect your computer to the network and test to see if Roblox gives you the error again.

Restart Your Router
  1. Unplug your modem and internet router from the power socket.
  2. Wait 15 seconds.
  3. Plug the modem back into the socket and wait for a minute or two.
  4. Turn the router on.
  5. Wait for the modem’s lights to become green.
  6. Connect your computer to the network and test to see if Roblox gives you the error again.