User's Manual

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 Make sure that the user name or password is correct.
 You have moved out of range of the network.
 Turn off power management.
Other Problems
The date/time is incorrect.
 Correct the date and time via the operating system or BIOS Setup program.
 After you have performed everything as described above and still have the
incorrect date and time every time you turn on the Tablet PC, the RTC
(Real-Time Clock) battery is at the end of its life. Call an authorized dealer to
replace the RTC battery.
GPS signals drop when they are not supposed to.
 If your Tablet PC is connected to the docking station which has one or more USB
3.1/3.0 devices connected, the USB 3.1/3.0 device can interfere with the radio
frequency, causing poor GPS signal reception. To solve the problem in this
situation, run the BIOS Setup Utility, go to Advanced  Device Configuration 
Docking USB Port Setting and change the setting to USB 2.0.