Alert LED 97

Alert LED

The Alert LED will flash when the Router unit is first powered up while

 

the system software checks the hardware for proper operation. Once

 

the Router has started normal operation, the Alert LED will go out.

 

If the Alert LED does not go out following start up, but illuminates

 

continuously, this indicates that the software has detected a possible

 

fault with the hardware. Remove power from the Router, wait 10

 

seconds and then re-apply power. If the Alert LED comes on

 

continuously again, then a fault has been detected. Locate the copy of

 

the Router software on the accompanying CD-ROM or 3Com web site

 

(http://www.3com.com) and upload it to the Router to see if this

 

clears the fault (refer to “Recovering from Corrupted Software” below).

 

If this does not fix the problem, contact your supplier for further advice.

 

During normal operation, you may notice the Alert LED lighting

 

briefly from time to time. This indicates that the Router has detected a

 

hacker attack from the Internet and has prevented it from harming your

 

network. You need take no specific action on this, unless you decide

 

that these attacks are happening frequently in which case you may

 

wish to discuss this with your ISP. The Router logs such attacks, and

 

this information is available through the Status and Logs screens.

 

 

Recovering from

If the Alert LED remains permanently on following power-up, it is

Corrupted Software

possible that the system software has become corrupted. In this

 

condition, the Router will enter a “recovery” state; DHCP is disabled,

 

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.

 

The latest software is available on 3Com’s Web site at:

 

www.3com.com.

1Remove power from the Router and disconnect the Cable/DSL modem and all your computers, except for the one computer with the software image.

2You will need to reconfigure this computer with the following static IP address information:

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HP 100 -G Router manual Alert LED, Recovering from, Corrupted Software

100 -G Router specifications

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