3Com 3C16405, User Manual

Page: 163 / 188

DUA1640-5AAA02
Solving Problems With the Agent Upgrade Utility D-3
Solving Problems
With the Agent
Upgrade Utility
If you have any problems using the upgrade utility, use the following
actions to solve your problems.
An error occurred when the utility tried to connect through the
PC’s serial port.
The serial port being used is not the same as the
serial port specified in the upgrade command. Retry the command
ensuring that you specify a value of ‘1’ or ‘2’ for the serial port.
An error occurred when the utility tried to communicate with
the hub.
There could be a number of reasons for this:
■
The hub was not powered on within 5 seconds of pressing [Return]
(step 7).
■
The null modem cable is not connected to the hub’s COM port.
■
The null modem cable is not connected to the PC’s serial port, or
the serial port being used is not the same as the serial port specified
in the upgrade command.
■
The hub was not powered off and on as directed.
Retry the command ensuring that you follow all the steps.
An error occurred when the utility tried to open the agent
software file for reading.
There could be two reasons for this:
■
The file specified in the upgrade command does not exist or is in a
different directory to the one given. Check the filename and its
location.
■
You do not have read access for the file. Check the file’s properties
using Explorer (in Windows 95) or File Manager (in other versions of
Windows).
The error message
USAGE: update [-c comport] filename
is returned. You have not specified the correct number of parameters
for the upgrade command. Retry with the correct parameters.