Ethernet problems

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

•“Your computer cannot connect to the network” on page 109

•“The adapter stops working for no apparent reason” on page 109

•“If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps, the connection fails or errors occur” on page 110

•“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 110

Your computer cannot connect to the network

Symptom: Your computer cannot connect to the network.

Actions: Ensure 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, 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 be using 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.

On the Windows 8 operating system, do the following:

1.Open 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 be using 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.

If you configured the adapter for full duplex, ensure that the switch port is also configured for full duplex. Setting the wrong duplex mode can degrade performance, cause data loss, or result in lost connections.

•You have installed all networking software that is necessary for your network environment. Check with your LAN administrator for the necessary networking software.

The adapter stops working for no apparent reason

Symptom: The adapter stops working for no apparent reason.

Chapter 10. Troubleshooting and diagnostics 109

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Lenovo 3273 Ethernet problems, Your computer cannot connect to the network, Adapter stops working for no apparent reason
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4004, 3263, 3264, 4156, 3261 specifications

Lenovo has long been at the forefront of the technology landscape, offering a diverse range of products designed to meet the needs of various users. Among its notable offerings are the models 3273, 3856, 3267, 3261, and 4156, each tailored for specific applications and user requirements.

The Lenovo 3273 is designed for business professionals who seek reliability and performance. It features a robust Intel processor that ensures seamless multitasking capabilities. With an emphasis on security, the 3273 includes built-in encryption features and a fingerprint reader to protect sensitive information. Furthermore, it boasts an LCD display with vibrant colors, enhancing the visual experience during presentations or video conferences.

The Lenovo 3856 stands out for its ultra-portable design, catering to users who prioritize mobility. This model incorporates lightweight materials without compromising durability. It features an extended battery life, allowing users to remain productive throughout the day. Additionally, the inclusion of fast-charging technology ensures that even short charging sessions provide significant usage time, making the 3856 perfect for on-the-go professionals.

The Lenovo 3267 is tailored for creative individuals and content producers. It comes equipped with high-resolution graphics capabilities and ample storage options to handle large files and demanding applications. The touchscreen display adds versatility, allowing for intuitive interactions that enhance productivity during design, editing, and other creative processes. Its audio system is also optimized, providing rich sound that enhances multimedia experiences.

For those in educational settings, the Lenovo 3261 is an excellent choice. It is designed with durability in mind, featuring a rugged build that can withstand daily wear and tear. The model also includes educational software packages that support learning and development. Its user-friendly interface makes it accessible to students of all ages, fostering an engaging learning environment.

Lastly, the Lenovo 4156 is suitable for gamers and demanding users. With advanced cooling technologies and a powerful graphics card, the 4156 provides an immersive gaming experience. Its customizable keyboard and enhanced audio features allow gamers to have complete control and an engaging atmosphere during play. Furthermore, it supports virtual reality capabilities, making it a future-ready option for gamers looking to delve into new realms of entertainment.

In summary, Lenovo's models – the 3273, 3856, 3267, 3261, and 4156 – represent the brand’s commitment to innovation, functionality, and user satisfaction. Each model is designed with distinct features, technologies, and characteristics, catering to the varied needs of professionals, students, creatives, and gamers alike. Lenovo's diverse portfolio continues to position it as a leader in the technology market.
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