13Troubleshooting TipsProblem Suggested SolutionCan not estab-lish the USBconnectionbetween yourdevice and PC• You need install the software. Run theinstallation program in path of My Com-puter >SPEED 4G Mifi• If the driver of your device is abnormal,please reinstall the software. You needuninstall the software first.Can not es-tablish the Wi-Fi connectionbetween yourdevice and cli-ent• Make sure the Wi-Fi function is active.Press the WPS button to enableWi-Fi function.• Refresh network list and select the cor-rect SSID.• Check the IP address to make sureyour client can obtain an IP addressautomatically in the Internet protocol(TCP/IP) properties.• Type the correct network key (Wi-Fipassword) when you connect to the de-vice.