My Wi-Fi® connection keeps dropping
- Restart your device and turn off Wi-Fi® , then turn Wi-Fi® on again.
- Restart the router. Check that your router is Wi-Fi® certified. Your device is Wi-Fi® certified, so if the router isn’t, the devices may not communicate properly.
To check whether your router is Wi-Fi® certified
- Look for the " Wi-Fi® CERTIFIED" logo or phrase on the product packaging or in the product literature, or search the Wi-Fi® CERTIFIED products database on the Wi-Fi® Alliance website at www.wi-fi.org .
- Verify that you are in range of the Wi-Fi® router. Check the Wi-Fi® signal strength in the status bar. If the signal is low, or there is no signal, move closer to the Wi-Fi® hotspot, that is, the device that provides the Wi-Fi® network.
- Make sure that both your device and the router are using the latest software versions.
- Device: Click here to check for software updates for the device.
- Router: Contact the router manufacturer for instructions on how to update the router software.
- Remove any protective case from your device to see if the Wi-Fi® signal strength improves.
- Use a static IP address.
Contact your Internet service provider to ask about the IP address settings.
To manually set the IP address on your device
- From your Home screen , tap .
- Find and tap Settings > Wi-Fi® .
- Touch and hold the name of the network that you are connected to.
- Tap Modify network .
- Mark the Advanced options checkbox.
- Under IP settings , select Static .
- Scroll down and enter the required settings.
- Tap Save .
- Check that the Wi-Fi® sleep policy is set to always have Wi-Fi® turned on.
To add a Wi-Fi® sleep policy
- From the Home screen , tap .
- Find and tap Settings > Wi-Fi .
- Tap , then tap Advanced > Keep Wi-Fi on during sleep .
- Select an option.
- Change the Wi-Fi® network security of your router to a different security encryption.
For instructions on how to change the network security, check the user guide of the router or contact your router manufacturer.
- Make sure that potentially interfering devices or appliances are not placed close to the Wi-Fi® router.
Cordless phones, microwave ovens, baby monitors, wireless speakers, monitors and video transmitters that operate in the 2.4 GHz or 5 GHz bandwidth may interfere with a Wi-Fi® network. If the problem persists, try changing the router frequency band settings to 5GHz or 2.4GHz.
For instructions on how to change router channel settings, check the user guide of the router or contact your router manufacturer.
- Perform a factory data reset. This is sometimes the best solution if your device stops functioning properly, but note that it will delete all personal content saved on the internal memory of your device. Make sure to back up data that you want to keep.
To back up your data using a computer
- Connect your device to the computer using a USB cable.
- Computer: Open the Xperia™ Companion software. After a few moments, the computer detects your device.
- Select Backup on the main screen.
- Follow the on-screen instructions to back up data from your device.
To avoid permanent damage to your device, do not restart your device while a reset procedure is underway.
- Before you start, make sure to back up any important data that is saved on the internal memory of your device to a memory card or other non-internal memory.
- From your Home screen , tap .
- Find and tap Settings > Backup & reset > Factory data reset .
- To delete information, such as pictures and music, from your internal storage, mark the Erase internal storage checkbox.
- Tap Reset phone .
- If required, draw your screen unlock pattern, or enter your screen unlock password or PIN to continue.
- To confirm, tap Erase everything .
Your device does not revert to an earlier software version of Android™ when you perform a factory data reset.