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To prevent this problem, be sure to set a password while installing NPort
Server Lite in Single Host mode. If a password is set, then only someone
who knows the password will be able to reinstall the NPort Server Lite
driver (either from the original or a different host).
If you would like your NPort Server Lite to allow access to more than one
host, first uninstall the Single Host Mode driver, and then reinstall the driver
in Custom Mode.
Why am I unable to change NPort Server Lite’s IP address and other
properties?
Two situations could give rise to this problem.
1. Incorrect Password—If you type the wrong password while running
NPort Server Lite Manager, the Manager program will not allow you to
change NPort Server Lite’s IP address and other properties. Only the
administrator, which by definition is anyone who knows the password,
has the right to modify the server’s configuration.
Keep in mind that even when two or more hosts are given access to a
server’s serial ports, it is still possible to protect access to the server’s
administrative functions by setting up a password. Consequently, if you
need to change some configuration settings, but you do not know the
password, you will have to ask the administrator for help. If you are the
administrator, but forget the password, you can erase the current
password by pressing the RESET button on NPort Server Lite’s back
panel for three seconds.
2. Incorrect Operation Mode—You will not be able to change the device
server’s IP address if you are installing NPort Server Lite under Single
Host Mode. Setting up the installation procedure in this way makes the
Single-Host Mode configuration procedure very similar to installing a
traditional multiport serial board. Under Single Host Mode, users are
only allowed to modify the device server's name and password. This is
because Single Host users are not sharing their NPort Server Lite with
other hosts. If you need to modify other properties, access NPort Server
Lite via Telnet, or run the setup program and change to another
operation mode.
I would like to allow one or more hosts to access an NPort Server Lite
device server, but I am unable to open the Access Control page.
Check the NPort Manager operation mode. If the currently installed
operation mode is Single-Host Mode, reinstall it as Custom Mode.