Given what Apple iPhone lineups have done to represent innovation and advancement, you probably assume that the Apple's newest flagship iPhone 5S with iOS 7 would be perfect without any problems. But you'd be wrong. The iPhone 5S inevitably encounters the Wifi problem as its predecessor – the iPhone 5. Many iPhone users reported they experienced some Wi-Fi issues for iPhone 5S, iPhone 5 or 4S: the greyed out Wi-Fi switch, inability to locate or connect to WiFi network, the Wi-Fi signal dropped suddenly or difficulty to access the Internet after connecting to the network. If you come across these Wifi issues, you can learn from the following troubleshootings to fix the iPhone 5S/5 Wi-Fi problems.
How to Fix the Greyed Out Wi-Fi Switch Problem
The problem that Wi-Fi button is greyed out or dim is the most common for iPhone 4S. But some iPhone 5 owners have experienced this issue too. When iPhone 5 suffers a grayed out Wi-Fi switch, it is very hard for users to find the "Wi-Fi Address" under Settings General > About. The disabled iPhone Wi-Fi switch issue may be caused by the iOS or the firmware version.
You can update the iOS to the latest version to fix the disabled iPhone 5 Wi-Fi switch issue. But if you don't want to upgrade the iOS, you can try the following solution first.
Go to Settings > Disable Airplane Mode > Go to General > Rest > Tap "Rest Network Settings" (Please kindly note all saved Wifi passwords, Bluetooth pairing records, VPN as well as the APN settings will be removed after this setting) > Press and hold the Sleep and Home Buttons together to restart the iPhone
If you have an iPhone 4S, and also encounter the greyed out Wifi issue on the iOS 7, you can check this article How to Fix the iPhone 4S Wifi Problems After iOS 7 Update for further information.
Solutions to the Inability to Locate or Connect WiFi on iPhone 5S/5
If your iPhone Wi-Fi button is available but you find it difficult to locate the Wifi network or connect Wifi on iPhone 5S/5, you can try the solutions below.
Locating Wifi Network: Go to Setting > Wi-Fi to choose available network, if you can't find any network, you can get close to the wireless router to try again. Or reset the network setting by going to Settings > General > Reset > Reset Network Settings. (Please kindly note all saved Wifi passwords, Bluetooth pairing records, VPN as well as the APN settings will be removed after this setting)
Connecting to Wifi Network: Make sure the Wifi network you want to connect is available and verify the Wifi password is correct, for the passwords can be case sensitive or with special characters. If everything is fine, but you are still not able to connect the Wifi for iPhone 5S/5, you can try to fix the Wifi problem by tapping General > Rest > Reset Network Settings
How to Fix the iPhone 5S/5 Wifi Issue of Difficulty to Access the Internet
Some people complained they come across the difficulty to access the Internet even though they have already connected to the Wifi network. What can you do to resolve the Wi-Fi accessing the Internet issue?
If you want to use the public or commercial WiFi network which needs authority to access the network, you may need to log in or do the subscription.
If you are connecting the Wifi network at home, you can try other device, like computer to check if it has Internet access, if the computer does, you can reset the network settings on your iPhone 5S or iPhone 5 by going to Settings > General > Reset > Reset Network Settings. If the computer fails to do the Internet access too, you can try to turn off the WiFi router and keep it off for several minutes, then turn on the router to try again the Wifi connection. If the wifi issue is still unresolved, you can consult with your network manufacturer to report the problem.
How to Solve the iPhone 5S/5 Signal Drops Suddenly Issue
If your iPhone drops the Wifi network, you can check if the Wifi signal strength is enough at first. The Wifi signal problem is related to the WiFi router and the ISP (Internet Service Provider), so if the signal is not strong enough, you can move close to the WiFi router to try it again. But if the Wifi signal works well, your iPhone 5S or iPhone 5 still drops the Internet connection, you can try the following troubleshooting.
Go to Settings > WiFi > Tap on the arrow nearby the troubled WiFi network > Tap "Renew Lease" to check if the Wifi connection problem is solved.
If it does not work, you can tap on the "Forget this Network" instead of "Renew Lease" to fix the issue, but if you do this setting, you should reconfigure the WiFi network on your iPhone 5S or iPhone 5 by setting the WiFi password.
If the dropping Wifi connection problem still exists, you can try to reset the iPhone 5S or iPhone 5 network by navigating to Setting > General > Reset > Reset Network Settings.
Did you experience any Wifi issues on iPhone 5S or iPhone 5? Did the above-mentioned Wifi solutions help you? Let us know your comments below.