Troubleshoot y our se tup
Problems getting on to the internet or your own network? Start here
Your network can be neatly divided into two zones: inside and outside. The outside refers to the wider internet, delivered to your home through your phone or cable connection, while the inside is where all your networked devices reside — whether they’re connected using Wi-Fi or Ethernet cabling. Bridging the two is your modem-router, which does the hard work of managing the connections between devices.
When it comes to troubleshooting your network connection, therefore, you have three major points where problems tend to occur: your Mac or some other device, your router, or your internet connection.
The simple stuff
Begin by restarting your router or powering it off for a minute or so — this often clears up most problems, just like restarting your Mac can occasionally fix glitches. Speaking of which, restart that at the same time. Don’t take this as a reason to regularly power off your router — it should normally be left on.
That will clear up some glitches, but not all. The guide opposite reveals how to use macOS’s own networking tools to try to determine the problem and attempt a fix — as they tend to focus on your Mac, check whether your other devices are suffering a similar problem before focusing attention on your Mac.
If the problem appears to affect all your devices, then the next port of call is your router. If devices can see and connect with each other, but not the internet, then the issue may lie with a problem outside your home (and direct control). The second guide opposite reveals how to try to rectify this problem — if you don’t have the means to connect to the internet another way — for example, using a hotspot feature on your cellphone — it’s worth checking with your neighbors to see if their broadband connection is down and, if not, if they’ll let you connect temporarily so you can continue to troubleshoot the problem.