– Ensure that the switch is 802.3ab-compliant (gigabit over copper).

A wireless LAN problem

Problem: You cannot connect to the network using the built-in wireless network card.

Solution: Make sure that:

Your wireless LAN driver is the latest version.

your computer is within range of a wireless access point.

The wireless radio is enabled.

Make sure that the wireless radio is enabled by double-clicking the Access Connections icon in the Windows notification area.

For Windows 7 operating system, check the Network Name (SSID) and your encryption information. Use the Access Connections program to verify this case-sensitive information.

A wireless WAN problem

Message: Unauthorized WAN card is plugged in - Power off and remove the WAN card.

Solution: The WAN card is not supported on this computer. Remove it.

Note: Depending on your computer, some models do not have a wireless WAN card.

Bluetooth problems

Note: Check your connection anytime and ensure that no other Bluetooth-enabled device is searching for the device to which you want to connect. Simultaneous searching is not allowed in the Bluetooth connection.

Problem: Sound does not come from the Bluetooth headset/headphone but comes from the local speaker even though the headset/headphone is connected using Headset profile or AV profile.

Solution: Do the following:

1.Exit the program that uses the sound device (for example, Windows Media Player).

2.Open Control Panel and click Hardware and Sound Sound Playback.

3.If you are using Headset profile, select Bluetooth Hands-free Audio and click the Set Default button. If you are using AV profile, select Stereo Audio and click the Set Default button.

4.Click OK to close the Sound window.

Problem: PIM (Personal Information Manager) items sent from Windows 7 operating system cannot be received correctly into the address book of any other Bluetooth-enabled device.

Solution: The Windows 7 operating system send PIM items in XML format, but most Bluetooth-enabled devices handle PIM items in vCard format. If another Bluetooth-enabled device can receive a file through Bluetooth, a PIM item sent from the Windows 7 operating system might be saved as a file with the extension .contact.

Problems with keyboard and other pointing devices

The following are the most common keyboard and other pointing devices problems.

UltraNav pointing device problems

Problem: The cursor drifts when the computer is turned on or after it resumes normal operation.

Chapter 10. Troubleshooting computer problems 137

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Lenovo L430, L530, 24684XU Problems with keyboard and other pointing devices, Wireless LAN problem, Wireless WAN problem

24684XU, L430, L530 specifications

The Lenovo L530 and L430 are part of the ThinkPad series of laptops, which are designed to cater to business professionals by providing robust performance, durability, and security features. The L530, a larger variant, is designed to meet the needs of users who require efficient multitasking capabilities, while the L430 is more compact, catering to professionals on the go.

One of the main features of the Lenovo L530 is its Intel Core processor, which offers various configuration options ranging from Intel Core i3 to i7. These processors ensure that the laptop delivers exceptional performance for demanding applications and multitasking workflows. The L530 typically comes with up to 8GB of RAM, enhancing its ability to run multiple applications smoothly.

For the L430, it also features a range of Intel Core processors, providing a balance between performance and power efficiency. With a maximum of 8GB RAM, it is designed to handle everyday business tasks with ease, making it perfect for users who need a reliable machine without the bulk.

Both models feature a 15.6-inch and 14-inch display, respectively, with options for HD and HD+ resolutions. This ensures vibrant visuals for presentations and media consumption alike. The keyboards are characteristic of the ThinkPad series, offering a comfortable typing experience with excellent key travel and feedback, making long hours of work less taxing.

In terms of storage, both laptops offer HDD and SSD options, allowing users to choose between larger storage capacities or faster boot and load times. Connectivity is another strong point, with multiple USB ports, HDMI, and Ethernet options, ensuring that users can connect various peripherals effortlessly.

Security is paramount in Lenovo's offerings. The L530 and L430 come equipped with features such as a fingerprint reader, Trusted Platform Module (TPM) for data encryption, and customizable privacy settings, catering to security-conscious professionals.

Additionally, both models boast robust build quality, adhering to military specifications for toughness. Durability means they can withstand the rigors of daily travel and usage, which is a significant consideration for business users.

Lenovo's energy-efficient technologies are also worth mentioning, promoting longer battery life and lower power consumption. Businesses can rely on these laptops for extended usage without frequent recharges, enhancing productivity.

Overall, the Lenovo L530 and L430 represent solid choices for business-oriented laptops, offering the balance of performance, portability, and security that professionals demand in today’s fast-paced work environment.