3. Turn on the monitor.

If these actions do not correct the problem, your monitor might need service. See Chapter 11 “Getting information, help, and service” on page 111 for details.

Networking problems

The following are the most common networking problems. Select your networking problem from the following list:

•“Ethernet problems” on page 101

•“A wireless LAN problem” on page 102

•“A wireless WAN problem” on page 103

•“Bluetooth problems” on page 103

For more information, see “Help and Support” on page 111.

Ethernet problems

For Ethernet problems, select your symptom from the following list:

•“Your computer cannot connect to the network” on page 101

•“The adapter stops working for no apparent reason” on page 102

•“If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps, the connection fails or errors occur” on page 102

•“If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps. Instead, it connects at 100 Mbps” on page 102

Your computer cannot connect to the network

Symptom: Your computer cannot connect to the network.

Actions: Make sure that:

•The cable is installed properly.

The network cable must be securely connected to both the Ethernet connector of your computer and the RJ45 connector of the hub. The maximum allowable distance from the computer to hub is 100 meters. If the cable is connected and the distance is within acceptable limits but the problem persists, try a different cable.

•The cable is installed properly.

•You are using the correct device driver.

On the Windows 7 operating system and the Windows Vista operating system , do the following:

1.Click Start ➙ Control Panel.

2.Click Hardware and Sound.

3.Click Device Manager. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

4.If an exclamation mark is displayed next to an adapter name under Network adapters, you might not use the correct driver or the driver is not enabled. To update the driver, right-click the highlighted adapter.

5.Click Update Driver Software, and then follow the instructions on the screen.

•The switch port and the adapter have the same duplex setting.

Chapter 10. Troubleshooting and diagnostics 101

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Lenovo 4485, 4471, 4466, 7023, 7005, 4512 Networking problems, Ethernet problems, Your computer cannot connect to the network
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4485, 4514, 4480, 4471, 4496 specifications

Lenovo's ThinkPad series has long been synonymous with durability, performance, and enterprise-grade features, and the models 4474, 4473, 4477, 4468, and 4466 are no exception. Each of these models brings distinct characteristics and technologies tailored to meet the diverse needs of users ranging from casual consumers to business professionals.

The Lenovo 4474 model excels in portability and performance. Featuring a lightweight chassis, it is designed to be carried easily for on-the-go professionals. It is equipped with Intel’s latest processors, ensuring quick response times and efficient multitasking capabilities. The display, often a Full HD resolution, enhances the multimedia experience, making it suitable for presentations and video playback.

The Lenovo 4473 model stands out with its robust security features. It comes with a fingerprint reader and an integrated Trusted Platform Module (TPM) to provide an added layer of security for sensitive information. This focus on security makes it an excellent choice for businesses that prioritize data protection and compliance with various regulations.

The 4477 model is recognized for its exceptional battery life. With energy-efficient components and optimized power management technologies, users can expect extended productivity without the need for frequent charging. This model is perfect for users who need to work remotely or in environments where power sources are not readily available.

For those seeking a balance between versatility and performance, the Lenovo 4468 model is an appealing choice. This model supports a wide range of connectivity options, including USB-C, HDMI, and Ethernet ports, catering to various peripheral needs. Additionally, it typically features an ergonomic keyboard and a responsive touchpad, enhancing the user experience for long typing sessions.

Lastly, the Lenovo 4466 brings innovation in terms of display technology. With options for touchscreens and high-resolution displays, this model caters to creative professionals who require precise color accuracy and vivid graphics. It offers a solid performance for design tasks, video editing, and even gaming, making it a versatile option for different scenarios.

In summary, Lenovo’s models 4474, 4473, 4477, 4468, and 4466 are tailored to address specific user needs, whether it be portability, security, battery life, connectivity, or display technology. These ThinkPad series laptops continue to exemplify Lenovo's commitment to quality and innovation in the computing space.
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