Hp EliteBook 2740p Tablet-PC User Manual Page 42
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Troubleshooting wireless connection problems
Some possible causes for wireless connection problems include the following:
●
Wireless device is not installed correctly or has been disabled.
●
Wireless device or router hardware has failed.
●
Network configuration (SSID or security) has been changed.
●
Wireless device encountered interference from other devices.
NOTE: Wireless networking devices are included with select computer models only. If wireless
networking is not listed in the feature list on the side of the original computer package, you may add
wireless networking capability to the computer by purchasing a wireless networking device.
Before working your way through the sequence of possible solutions to your network connection
problem, be sure that device drivers are installed for all wireless devices.
Use the procedures in this chapter to diagnose and repair a computer that does not connect to the
network you want to use.
Cannot create a WLAN connection
If you have a problem connecting to a WLAN, confirm that the integrated WLAN device is properly
installed on your computer:
NOTE: Windows includes the User Account Control feature to improve the security of your
computer. You may be prompted for your permission or password for tasks such as installing
software, running utilities, or changing Windows settings. Refer to Windows Help and Support for
more information.
1. Select Start > Computer > System properties.
2. In the left pane, click Device Manager.
3. Identify the WLAN device from the Network adapters list. The listing for a WLAN device may
include the term wireless, wireless LAN, WLAN, or 802.11.
If no WLAN device is listed, either your computer does not have an integrated WLAN device, or
the driver for the WLAN device is not properly installed.
For more information on troubleshooting WLANs, refer to the Web site links provided in Help and
Support.
30 Chapter 3 Networking
- HP EliteBook 2740p User Guide 1
- Safety warning notice 3
- Table of contents 5
- 1Features 13
- 2 Chapter 1 Features 14
- Identifying hardware 3 15
- Buttons and switches 16
- Identifying hardware 5 17
- Front components 18
- Right-side components 19
- Left-side components 20
- Rear components 21
- Bottom components 22
- Identifying hardware 11 23
- 12 Chapter 1 Features 24
- Identifying the labels 25
- 2 Using the tablet 27
- Rotating the display 28
- Notebook mode 30
- Rotating the display 19 31
- 3Networking 32
- Using the wireless controls 33
- Using the wireless button 33
- Using a WLAN 35
- Connecting to a WLAN 37
- Roaming to another network 37
- Inserting a SIM 38
- Removing a SIM 39
- 28 Chapter 3 Networking 40
- WLAN connection is very weak 44
- Connecting a modem cable 45
- Selecting a location setting 46
- Using pointing devices 50
- Using the pen 53
- Pressure sensitivity 54
- Calibrating the pen 55
- Using the pen holder 55
- Setting pen preferences 56
- Tapping (or clicking) 56
- Flicking 56
- Dragging 57
- Scrolling 57
- Rotating 58
- Pinching 59
- Using touch screen settings 60
- Using the keyboard 61
- Using hotkeys 63
- Initiating Sleep 65
- Switching the screen image 65
- Decreasing screen brightness 66
- Increasing screen brightness 66
- Using HP Quick Launch Buttons 67
- Using HP QuickLook 68
- Using HP QuickWeb 68
- 5 Multimedia 70
- Multimedia software 71
- Checking your audio functions 73
- Webcam tips 76
- Adjusting webcam properties 76
- 6 Power management 79
- Using the battery meter 80
- Using power plans 80
- Customizing power plans 81
- Using external AC power 82
- Using battery power 83
- Using Battery Check 84
- Charging a battery 85
- Managing low battery levels 86
- Calibrating a battery 88
- Step 3: Discharge the battery 89
- Conserving battery power 91
- Storing a battery 91
- Disposing of a used battery 92
- Replacing the battery 92
- Testing an AC adapter 93
- Shutting down the computer 93
- Identifying installed drives 95
- Handling drives 95
- Using Disk Defragmenter 97
- Using Disk Cleanup 97
- Using HP 3D DriveGuard 98
- 8. Replace the battery 103
- 10. Turn on the computer 103
- 8 External devices 104
- Using USB legacy support 105
- Using a 1394 device 106
- 4. Remove the device 107
- Using a 1394 device 95 107
- Using external drives 108
- Using the docking connector 109
- 9 External media cards 110
- Configuring an ExpressCard 112
- Inserting an ExpressCard 112
- Inserting a smart card 114
- Removing a smart card 115
- 10 Memory modules 116
- 11 Security 120
- Using passwords 121
- BIOS administrator password 122
- Setting a DriveLock password 125
- Entering a DriveLock password 126
- Changing a DriveLock password 127
- Removing DriveLock protection 128
- Securing system devices 130
- Using antivirus software 132
- Using firewall software 133
- Installing critical updates 134
- Installing a security cable 136
- 12 Software updates 137
- Updating the BIOS 139
- Downloading a BIOS update 140
- The BIOS installation begins 141
- Updating the BIOS 129 141
- Updating programs and drivers 142
- 13 Backup and recovery 143
- Backing up your information 144
- Performing a recovery 145
- Using f11 146
- 14 Computer Setup 147
- Computer Setup menus 148
- File menu 149
- Security menu 149
- System Configuration menu 150
- Computer Setup menus 139 151
- Computer Setup menus 141 153
- 15 MultiBoot 155
- 16 Management and printing 161
- Enabling the iAMT solution 166
- Change Intel ME Password 167
- 17 Cleaning guidelines 169
- Cleaning procedures 170
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