
If you configured the adapter for full duplex, ensure that the switch port also is configured for full
duplex. Setting a 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.
•
Problem
: The adapter stops working for no apparent reason.
Solution
: The network driver files might be corrupt or missing.
•
Problem
: My computer is a Gigabit Ethernet model and I use a speed of 1000 Mbps, the connection fails
or errors occur.
Solution
:
– Use Category 5 wiring and ensure that the network cable is securely connected.
– Connect to a 1000 BASE-T hub/switch (not 1000 BASE-X).
•
Problem
: The Wake on LAN feature is not working.
Solution
: Ensure that Wake on LAN is enabled in ThinkPad Setup. If it is, check with your LAN
administrator for the necessary settings.
•
Problem
: My computer is a Gigabit Ethernet model, but it cannot connect to the network at 1000 Mbps.
Instead, it connects at 100 Mbps.
Solution
:
– Try another Ethernet cable.
– Ensure that the link partner is set to auto-negotiate.
– Ensure that the switch is 802.3ab-compliant (gigabit over copper).
Wireless-LAN problem
Problem
: I cannot connect to the network using the built-in wireless network card.
Solution
: Ensure that:
• The Airplane mode is off.
• Your wireless-LAN driver is the latest version.
• Your computer is within the range of a wireless access point.
• The wireless radio is enabled.
Wireless-WAN problem
Problem
: A message is displayed indicating that an unauthorized WAN card is installed.
Solution
: The WAN card is not supported on this computer. Remove the WAN card. For more information,
see “Replacing the wireless-WAN card” on page 100.
Note:
Some models do not have a wireless-WAN card.
Bluetooth problem
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/headphones but comes from the local speaker
even though the Bluetooth headset/headphones is connected using a Headset profile or AV profile.
.
Troubleshooting computer problems
79
Содержание ThinkPad A485
Страница 1: ...A485 User Guide ...
Страница 6: ...iv A485 User Guide ...
Страница 54: ...36 A485 User Guide ...
Страница 66: ...48 A485 User Guide ...
Страница 74: ...56 A485 User Guide ...
Страница 90: ...72 A485 User Guide ...
Страница 108: ...90 A485 User Guide ...
Страница 140: ...122 A485 User Guide ...
Страница 144: ...126 A485 User Guide ...
Страница 146: ...128 A485 User Guide ...
Страница 152: ...134 A485 User Guide ...
Страница 158: ...140 A485 User Guide ...
Страница 159: ...Taiwan RoHS Appendix D Restriction of Hazardous Substances RoHS Directive of countries and regions 141 ...
Страница 160: ...142 A485 User Guide ...
Страница 166: ...148 A485 User Guide ...
Страница 167: ......
Страница 168: ......