3Com 3CRWE825075A Conversiehandleiding - Pagina 8

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Reverting a MAP to Autonomous Operation

The access point has two code images: a default image and a runtime image. The default image is used

if the main runtime image gets corrupted. This default image provides limited functionality but allows

the 3Com Wireless Infrastructure Device Manager to access it and provide a new runtime image.

The reversion process works by deleting the MAP runtime image. The access point then boots the

default image. The 3Com Wireless Infrastructure Device Manager is then used to reload the

autonomous access point image.

NOTE: Before you can revert the access points, you need the 3Com Wireless Infrastructure

Device Manager and the latest version of the access point software installed on a PC. This

software may be downloaded from the 3Com web site at www.3com.com.

Reversion in a Stand-Alone Network

Connect the access point and the PC via a switch or hub. No other devices should be

present on this network. Provide power to the access point. In the absence of a Wireless

Switch, the Power LED flashes yellow.

Press the Reset button on the access point, release it for two seconds, and then press it

in again and keep it pressed for 30 seconds. The Reset button is located behind a small

hole on the rear panel of the AP7250, and between the Power and Ethernet LEDs on

the AP8250 and AP8750.

The Power LED should light green. If it does not, repeat step 2. It sometimes can be

difficult to keep the Reset button depressed on the AP8250 and AP8750.

Launch the 3Com Wireless Infrastructure Device Manager, select the network adapter (if

required) and refresh the display.

Select the device to be reverted in the Wireless Network Tree.

After the correct device has been selected, click Configure. Accept the suggested

IP address configuration for the access point. Leave the password field blank and click

Next. This launches the web management interface for the device.

Enter the username and password when prompted. The default username is admin and

the password field should be left blank. You also need to set the country code before

you can access the home page.

Click Advanced Setup, select the Administration page, and then go to the

Firmware Upgrade section.

Since the access point software is already loaded on the PC, it can be uploaded to the

access point using the Local option. Click the Browse button and locate the access point

software file. Click Start Upgrade to start the conversion process. The upload takes place

through the HTTP protocol from the local machine.

When the conversion is complete, click Reboot.

The access point can be configured for use as an autonomous access point as explained

in the access point user guides.