Audio Problems (For Selected Models); Network Problems - Lenovo ThinkEdge SE70 User Manual

Audio problems (for selected models)

Problem
The sound comes from one of the external
speakers.

Network problems

®
Note: The Wi-Fi , Bluetooth, and Ethernet LAN features are optional.
Problem
The computer cannot connect to an Ethernet
LAN.
When a Gigabit Ethernet model computer is
used at a speed of 1000 Mbps, the Ethernet
LAN connection fails or errors occur.
The Wi-Fi feature does not work.
The Bluetooth feature does not work.
Sound does not come from the Bluetooth
headset or headphones.
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ThinkEdge SE70 User Guide
Solution
• Ensure that the speaker cable is inserted completely into the
connector on the computer.
• Ensure that the cable that connects the left speaker to the right
speaker is securely connected.
• Ensure that the balance settings are set correctly.
Solution
• Connect the cable from the Ethernet connector to the RJ45
connector of the hub.
• Enable the Ethernet LAN adapter.
1. Go to System Settings and select Networks.
2. Ensure the Ethernet option is enabled.
• Update or reinstall the Ethernet LAN driver.
• Install all networking software that is necessary for your network
environment. Check with your LAN administrator for the necessary
networking software.
• Set the same duplex for the switch port and the adapter. If you
configured the adapter for full duplex, ensure that the switch port is
also configured for full duplex. Setting a wrong duplex mode might
degrade performance, cause data loss, or result in lost
connections.
Connect the network cable to the Ethernet connector using Category
5 wiring and a 100 BASE-T hub/switch (not 100 BASE-X).
• Enable all Wi-Fi devices.
1. Launch System Settings and select Networks.
2. Ensure the Wi-Fi option is enabled.
3. Make sure that Wi-Fi is enabled by the toggle at the top.
4. Select the settings cog next to each Wi-Fi device, and make
sure that it is configured and enabled.
• Update or reinstall the Wi-Fi driver.
• Enable all Bluetooth devices.
1. Launch System Settings and choose Bluetooth.
2. Make sure that Bluetooth is enabled by the toggle at the top.
3. Click on each device to enable and start pairing.
• Update or reinstall the Bluetooth driver.
Select the Bluetooth headset or headphones as the default audio
output device in advanced sound settings.