Lately I have had a bad and unstable internet connection. I have a Mac and it has been working fine for years. My internet provider is Vodafone-Ziggo.
I tried to find out what was wrong using the AirPortUtility.app on my Mac, and I found something strange : when selecting my wireless WiFi-network, my internet connection is presumed working, but when selecting my wired LAN-network, I get an error message saying there is no internet connection.
If it would have been the other way around, I could think of an explanation… but having wireless internet connection from my router and not LAN-internet just doesn’t make sense…
I’ve tried numerous resets of the Ziggo-modem, of my TimeCapsule and of my Mac. Nothing helps.
Do you have any suggestions on fixing this ?
Even though you’ve tried most of the available options already, there is one other thing I would suggest to try :
- make sure the UTP/Ethernet/LAN-cable is correctly connected into both your Mac and the ‘local network device’ (be it a TimeCapsule, a router, a modem, a network-switch or a wall-socket)
- then, on your Mac : click on the Apple-icon (top-left on your Mac’s desktop screen)
- in the pulldown menu, click on “System Preferences”
- in the window that opens (“System Preferences”), click on “Network”
- in the window that opens (“Network”), click on “Ethernet” in the list on the left
- in the info that appears on the right, check if it says “Status : Connected”
- if it doesn’t, your UTP/Ethernet/LAN-cable isn’t connected properly, so check all network-cables again until it says “Status : Connected”
- then, click the Advanced-button
- in the window that opens, click on the DNS-tab
- in the info that opens, at “DNS Servers:” make sure that you have at least included one of the following DNS Servers : 126.96.36.199 (Google), 188.8.131.52 (Google), 184.108.40.206 (OpenDNS) and/or 220.127.116.11 (OpenDNS)
- if none of those DNS Servers are listed yet, add them by clicking on the +/Plus-button bottom-left
- then click on the Proxies-tab (of the elongated TCP/IP-button)
- in the info that opens, make sure to remove the check-mark at both “Web Proxy (HTTP)” and “Secure Web Proxy (HTTPS)”
- in case both were already switched OFF, I would suggest to switch both of them to ON
- then leave the rest as is, and click on the OK-button
- in the previous window that appears, click the “Apply”
- now check the AirPortUtility.app again, and you should see that the internet connection is back up for both the wireless and wired/LAN connection
- also check by opening Safari (or another internet browser) and refresh the page by clicking on the circular arrow in the address bar
That’s it !