It is currently well documented that that the OS X 10.10.x line is having trouble with WiFi on universally every Macbook (simple Google search should bring up a number of results). If so, take it into Apple, because your wireless is more than likely messed up.
MAC NETWORK SETTINGS FOR INFLIGHT WIFI MAC WIFI UPDATE
There are however times when you will need to connect your iPad to a computer to restore it, reset it to the factory settings or perform an iOS update via Finder (macOS Catalina+) or iTunes. Problem: Hi there! To update wireless card driver follow the steps below 1.First, search Google for your PC manufacturers website like HP, DELL, Acer, Lenovo, etc. Otherwise, access the router, go to the wireless settings and try to … It says the wifi is still on and connected, but there is no internet connection. 2) Press the Shift, Control and Option keys on the left side on your keyboard and the Power buttons at the same time. Make sure the Ethernet cable is connected securely to the side or rear of your Mac.Create a New Connection.Make Sure the Mac is in Range.Delete the WiFi Network.Reconnect the Mac to the WiFi Network.Check the Connections to the Modem.Check the Connections to the Router.If the Issue Persists If present, try temporarily turning off all these devices or try connecting only with your PC for a while and keep the other devices, tablets, smartphones or other PCs off. Update or Reinstall WiFi Adapter Driver If your WiFi adapter driver is out of date, your device will keep disconnecting from WiFi. If it works fine, then it sounds like your router is starting to die. Therefore, it is always mandatory for a TV user to keep an eye over Wi-Fi connection in order to keep his smart TV working well.