Explains the cause and how to deal with the iPhone, when tethering is not possible | Mynavi News Mynavi News Mynavi

If "Internet sharing" is displayed on the "Settings" screen of the iPhone, the tethering option can be determined to be valid.

If the tethering option of the carrier is enabled (applied), you should be able to check the switch saying "Permission to connect to other people" by opening the screen in the order of "Settings" → "Internet sharing".Tap the "Wi-Fi" password underneath to register the password and turn on the "Permission of other people" switch to use tethering.

However, in the case of a Mac or iPad that the device to be connected to the iPhone is signed with the same Apple ID, the condition of the switch "permit other people" is irrelevant.Even if the switch is off, you can use the iPhone tethering by starting the connection operation from the Mac or iPad side.This is a function called "instant hot spot" that can only be used by Apple products.

If you use iPhone tethering from devices that do not support instant hot spots, such as Windows PCs and Android smartphones, you will be asked to enter your password.Check the password displayed on the "Settings" → "Internet Sharing" screen on the iPhone, and check if it matches the character string entered on the tethering machine side such as a personal computer.

Depending on the SIM card/ESIM used, APN (Access Point Name, mobile line connection information) is required.Note that there are carriers/MVNOs that require APN manual settings when using tethering, even if data communication does not require APN settings due to automatic processing.

Taking the ESIM service provided by IIJMIO as an example, open the screen in the order of "Settings" → "Mobile Communication" → "Line Name (Vice Line)" → "Mobile Data Communication Network", and in the Internet sharing field.It is OK if you enter the password.

If there is no problem with the iPhone tethering settings, what should I try next?

If you still can't use tethering, try the following processing:Tethering has a close relationship with the mobile communication function, so resetting the iPhone to return to the initial state (immediately after the power is launched).

Open the screen in the order of "Settings" → "General" → "End of System", and slide "Slide off" in the right direction.After about 30 seconds after the power of the iPhone turned off, press the side button to turn on the power.

Open the screen in the order of "Settings" → "General" → "Software Update", and confirm whether there is an update.If it exists, tap "Download and install" to start download and update immediately.

Open the screen in the order of "Settings" → "General" → "Reset" and tap "Reset Network Settings" to initialize communications such as mobile lines, Wi-Fi, and Bluetooth.Not only mobile lines, but also Wi-Fi access points (passwords, etc.) and pairing information with Bluetooth devices are initialized, so use it as a last resort.

If tethering for Wi-Fi connection is not possible

If tethering is not possible with Wi-Fi connection, check the Wi-Fi settings on the client (PC/tablet) side.In the case of Windows 10, click in the order of blowing (action center) → "Network" at the right end of the taskbar at the bottom right of the screen, and change the Wi-Fi button on the "Wi-Fi" button in the network list that appears.increase.In the case of a Mac, click the fan button at the top of the screen and select "Turn on Wi-Fi".

When the USB connection tethering is not possible

In USB connection tethering, the iPhone must be recognized as a USB device in the connected PC/tablet system.In both Windows 10 and Mac, the iPhone is recognized as a communication device just by connecting with a Lightning cable, and tethering is started as it is.

If the iPhone is not recognized, pull out the Lightning cable and trick it.If there is still no change, try a PC and iPhone system restart.The Lightning cable may be broken or a poor cable that has not received MFI certification may cause a problem.

If tethering is not possible for Bluetooth connection

Tethering with Bluetooth first complete pairing with your iPhone on your computer.In the case of Windows PC, the following settings are required after pairing.First, click the Bluetooth icon in the taskbar and select "Participate in Personal Area Network".In the next screen device list, right -click the iPhone and click "Connection Method" → "Access Point" to start tethering.

In the case of a Mac, just complete the pairing, then select an iPhone from the menu bar Bluetooth icon and select "Connect to Network".

If you fail to connect between a personal computer and an iPhone, open the screen in the order of "Settings" → "Bluetooth" on the iPhone, and switch the "Bluetooth" switch on/off.Bluetooth tethering tends to have trouble compared to Wi-Fi or USB, and it is not unusual for the cause to be more difficult.Try the Bluetooth on/off on the client (PC/tablet) side.

IT/AV columnist.He has been serialized and written on UNIX OS and smartphones.While working on technical articles, he also writes soft columns for entry layers.In Mynavi News, in addition to "Why I can't hear now", "(New) OS X Hacking!"Other than writing, he is passionate about the development of Linux distributions for audio -specific Raspberry Pi.Since 2012, he has been the AV equipment award "VGP" judge.