3Com 3CRWER300-73, User Manual

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130 C
HAPTER
6: T
ROUBLESHOOTING
Recovering from
Corrupted Software
If the system software has become corrupted, the Router will enter a
“recovery” state; DHCP is enabled, and the LAN IP address is set to
192.168.1.1. Follow the instructions below to upload a new copy of the
system software to a Router unit in this state.
Ensure that one of your computers has a copy of the new software image
file stored on its hard disk or available on CD-ROM.
Check on www.3com.com for the latest version firmware.
1 Remove power from the Router and disconnect from DSL or Cable
modem and all your computers, except for the one computer with the
software image.
2 You will need to reconfigure this computer to obtain an IP address
automatically (see
Obtaining an IP Address Automatically on page 23).
3 Restart the computer, and re-apply power to the Router.
4 Using the Web browser on the computer, enter the following URL in the
location bar:
http://192.168.1.1
.
This will connect you to the Recovery utility in the Router.
5 Follow the on-screen instructions. Enter the path and filename of the
software image file.
6 When the upload has completed, the Router will restart, run the self-test
and, if successful, resume normal operation.
7 Refer to the Installation Guide to reconnect your Router to the telephone
line and the computers in your network. Do not forget to reconfigure the
computer you used for the software upload.
If the Router does not resume normal operation following the upload, it
may be faulty. Contact your supplier for advice.
Power Adapter
Power Status Logo not lit.
This is probably because the switch does not have power. Check the
following:
■
Make sure the power lead from the power adapter is properly
connected and the cord is not damaged.