3com 3C990B-TX-M Manual De Usuario

Troubleshooting Remote Wake-Up

85

If your computer does not boot in response to a Remote Wake-Up event, perform these 
troubleshooting steps:

1 Make sure that the computer meets the “Remote Wake-Up Requirements” on 

2 Make sure that you are using the latest driver for the NIC.

This driver is shipped with the NIC on the EtherCD. It can also be downloaded from the 
3Com Software Library. Point your Web browser to the 3Com home page:

Under “Service and Support,” click Software, Drivers, and INFs.

Check the network 
connection

■

Inspect all cables and connections. Make sure that the cable complies with 
length and rating specifications described in “Installing and Connecting 
the NIC” on page 18.

■

Examine the cable for obvious signs of damage, wear, or crimping. 
Substitute a known working cable. Check the length and rating of the 
cable. Make sure that the cable complies with 10BASE-T or 100BASE-TX 
recommendations.

Check the 
computer BIOS

Make sure that you are running the latest BIOS for your computer. If the BIOS 
has not been upgraded in the previous 12 months, contact the computer 
manufacturer to obtain the current version of the BIOS software.

Run the NIC 
diagnostic tests

If the tests fail, replace the NIC with a known working NIC and run the tests 
again, using the same configuration settings as those used on the failed NIC. If 
the working NIC passes all tests, the original NIC is probably defective. For 
information on product repair, see “Technical Support” on page 109.

Check the 
3Com support 
databases

Review the known problems and solutions found in the following areas:

■

3Com Knowledgebase

■

3Com NIC Help system

■

Release Notes and Frequently Asked Questions

See “Accessing 3Com Support Databases” on page 82 for instructions on 
using these databases.

Download the latest 
NIC driver

The 3Com Software Library is your World Wide Web connection to software, 
drivers, and INF files for all 3Com products. Point your browser to the 3Com 
Web page (http://www.3com.com/). Under Service and Support, click 
Software, Drivers & INFs.

Run the Clean Up 
Failed Installation 
program

The Clean Up Failed Installation program is located on the EtherCD. See 
“Cleaning Up a Broken Installation” on page 83 for instructions.

NOTE: Wake-On-Error is enabled by default.