My iPhone has been always connecting to a known network but now it won’t connect to Wi-Fi anymore. This is something that I hear a lot so here’s what you can do to be able to connect again to the preferred wireless network plus, I’ll give you some tips for how to stay safe while using a public Wi-Fi network.
First of all, we need to assume that your wireless router works and that the issue is related to the iPhone and not the router itself. To make sure the router is working correctly check out any other devices connected to that router trough Wi-Fi. If you notice that other devices have connection problems as well try restarting the router.
Now that we know it’s not a router issue let’s try to look at the possible causes:
- Wi-Fi is not turned on
- Firmware problem
- Communication protocols have changed and your iPhone is using the old ones to connect
- Wi-Fi password have changes and your iPhone is using the old password to connect
- Hardware issue
Wi-Fi connection solutions
1. Check is Wi-Fi is on
This is the first thing you need to check just to be sure that this is not causing the problem. It is the most obvious thing to check and you might be sure that your Wi-Fi is on, but it’s quite easy to turn it off from the quick toggles by mistake. So let’s make sure that our iPhone have the Wi-Fi on and it is not on Airplane mode.
2. Force restart the device
Just to be sure it’s not a firmware (iOS) glitch, you should force restart your iPhone. This is solving the problems most of the times.
3. Reset specific network settings
If your iPhone does not connect ONLY to a specific Wi-Fi network there might be the case that the communication protocols or the password have changed. In this case your iPhone is remembering the old settings and is trying to connect to the network without success. We need to delete the network settings in this case.
To do this, go to Settings – Wi-Fi – Select the network you cannot connect to and tap on Forget This Network. Now try connecting again and set the necessary credentials if needed.
3. Reset all network settings
If the iPhone does not connect to any Wi-Fi network try resetting all network settings. You will need to reconnect to any network as all your saved networks will be deleted. To do this, go to Settings – General – Reset and tap on Erase All Content Settings.
Of course, as always a good idea is to have your system updated.
If none of the above works, you might have a hardware issue.
Security tips for Wi-Fi Connections
As an extra tip, keep in mind that you should only manually connect to a network (or avoid if possible), especially to those free ones like from Starbucks or McDonald’s. Here’s why:
Let’s say you automatically join to a public network like Starbucks. Your phone will try to connect to that network on any Starbucks location because the network name is the same. That might be one of the reasons your iPhone won’t connect to their Wi-Fi as they might change the protocols from time to time. But a hacker only need to create a network with a similar name, let’s say in a park full of phones having the Starbucks network saved and a proxy server set up. Your phone will think it’s a known network, it will connect to it and the hacker can:
- Monitor all your traffic and log even login credentials sent to non encrypted websites.
- Display fake websites (banks, social networks, email, etc) in your browser and capture you login details.
- See everything you do online on your phone.
As you see, there are many bad things that can happen by using saved public networks and it’s always a good idea to keep your Wi-Fi turned off and only connect to networks that you trust.