Dell 7840 Manuel d'utilisateur télécharger pdf (Page 35)

Troubleshooting | 35

Network problem

Problems Possible causes Possible solutions

No wireless

connection

1 Check if the wireless

radio is on. See

“Wi‑FiSetting”.

2 Try to get closer to the

wireless access point.

3 Reset the wireless router

if using a private network;

open the browser to view

the home page if using a

public network.

Slow internet

connections

The signal strength is

not strong enough.

Move your tablet to a

different location for better

signal reception.

Unable to pair with a

Bluetooth device

1 Ensure Bluetooth is

on and follow proper

Bluetooth pairing

instructions. See

“BluetoothSetting”.

2 Contact Dell. Go to

dell.com/support.

Touchscreen problem

Problems Possible causes Possible solutions

Touchscreen responds

slowly or improperly

• The screen is dirty.

• A protective cover

may prevent

the tablet from

recognizing your

inputs.

• Moisten a soft, lint‑free

cloth with either water

or a display cleaner, and

wipe the surface of the

tablet until it is clean. Do

not allow water from the

cloth to seep down to the

tablet ports or buttons.

• Remove any protective

covers from the

touchscreen.

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Dell 7840 Manuel d'utilisateur Page 35

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