Proxim AP-4000 Benutzerhandbuch
Troubleshooting
AP-4000 Series User Guide
Recovery Procedures
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For this procedure, you will first erase the AP Image currently installed on the unit and then use either ScanTool or the
Bootloader CLI (over the serial port) to set the IP address and download a new AP Image. Follow these steps:
Bootloader CLI (over the serial port) to set the IP address and download a new AP Image. Follow these steps:
1. While the unit is running, press the RESET button.
NOTE: You need to use a pin or the end of a paperclip to press a button.
The AP reboots and the indicators begin to flash.
CAUTION: By completing Step 2, the firmware in the AP will be erased. You will need an Ethernet connection, a TFTP
server, and a serial cable (if using the Bootloader CLI) to reload firmware.
2. Press and hold the RELOAD button for about 20 seconds until the POWER LED turns amber.
The AP deletes the current AP Image.
3. Follow one of the procedures below to load a new AP Image to the Access Point:
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Download a New Image Using ScanTool
To download the AP Image, you will need an Ethernet connection to the computer on which the TFTP server resides and
to a computer that is running ScanTool (this is either two separate computers connected to the same network or a single
computer running both programs).
to a computer that is running ScanTool (this is either two separate computers connected to the same network or a single
computer running both programs).
ScanTool detects if an Access Point does not have a valid software image installed. In this case, the TFTP Server and
Image File Name parameters are enabled in the ScanTool’s Change screen so you can download a new image to the
unit. (These fields are grayed out if ScanTool does not detect a software image problem.)
Image File Name parameters are enabled in the ScanTool’s Change screen so you can download a new image to the
unit. (These fields are grayed out if ScanTool does not detect a software image problem.)
Preparing to Download the AP Image
Before starting, you need to know the Access Point’s IP address, subnet mask, the TFTP Server IP Address, and the AP
Image file name. Make sure the TFTP server is running and configured to point to the folder containing the image to be
downloaded.
Image file name. Make sure the TFTP server is running and configured to point to the folder containing the image to be
downloaded.
Download Procedure
Follow these steps to use ScanTool to download a software image to an Access Point with a missing image:
1. Download the latest software from
(Knowledgebase Answer ID 1250).
1. Copy the latest software updates to your TFTP server.
2. Launch ScanTool.
3. Highlight the entry for the AP you want to update and click Change.
4. Set IP Address Type to Static.
2. Launch ScanTool.
3. Highlight the entry for the AP you want to update and click Change.
4. Set IP Address Type to Static.
NOTE: You need to assign static IP information temporarily to the Access Point since its DHCP client functionality is not
available when no image is installed on the device.
5. Enter an unused IP address that is valid on your network in the IP Address field. You may need to contact your
network administrator to get this address.
6. Enter the network’s Subnet Mask in the field provided.
7. Enter the network’s Gateway IP Address, if necessary. You may need to contact your network administrator to get
7. Enter the network’s Gateway IP Address, if necessary. You may need to contact your network administrator to get
this address. You should only need to enter the default gateway address (169.254.128.133) if the Access Point and
the TFTP server are separated by a router.
the TFTP server are separated by a router.
8. Enter the IP address of your TFTP server in the field provided.
9. Enter the Image File Name (including the file extension). Enter the full directory path and file name. If the file is
9. Enter the Image File Name (including the file extension). Enter the full directory path and file name. If the file is
located in the default TFTP directory, you need enter only the file name.
10.Click OK.