If other devices have joined your Personal Hotspot using Wi-Fi, you can only use mobile data to connect to the internet from the host device. The number of devices that can join your Personal Hotspot at one time depends on your network provider and iPhone model. When you connect a device to your Personal Hotspot, the status bar turns blue and shows how many devices have joined.

To disconnect a device, turn off Personal Hotspot (slide the Allow Others to Join tab), turn off Bluetooth or unplug the USB cable from your device.If your Mac doesn't recognize your device, try a different USB cable. Make sure that you can locate and view your iPhone or iPad in iTunes (on PC) or the Finder (on Mac).If you see an alert that says “Trust This Computer?”, tap Trust. Then connect your iPhone or iPad to your computer with the USB cable you use to charge your device.To connect to a hotspot using USB, first make sure you have the latest version of iTunes on your Mac or PC.Right-click your device (having added it to your PC) and hover your pointer over 'Connect using', then select 'Access point'.On a Windows PC, click the Bluetooth icon in the Notification area and choose Join A Personal Area Network.

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