Network-related Problems
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When connection to a desired Web server fails
IPv4 and IPv6 Connection Problems
This section describes symptoms and remedies for errors that may occur when an IPv4
or IPv6 address is used for connection.
Unable to connect using an IPv4 address
Unable to connect using an IPv6 address
Cause
Remedy
The settings to use the proxy
server is not configured.
In the environment using the proxy server, the machine
should be configured to use the proxy server. Otherwise, you
cannot connect to a desired Web server. Make the settings
to use the proxy server.
The settings to use the proxy
server is configured even
though the environment does
not go through the proxy
server.
In the environment that does not use the proxy server such
as connecting to an intranet, do not make the settings to use
the proxy server.
The proxy server address is
incorrect.
When the settings to use the proxy server are configured,
you cannot connect to a desired Web server unless the IP
address of the proxy server is correct. Set the correct IP
address of the proxy server.
When the proxy server
requires authentication,
cannot connect to the server
because the user name or
password is incorrect.
Set the user name and password to the machine that are
allowed to connect to the proxy server.
Symptom
Remedy
When 0 (zero) is prepended
to the head of a value,
connection fails. (Example:
124.249.010.033)
Do not prepend 0 (zero) to each value of an IPv4 address.
Symptom
Remedy
A connection cannot be
made to the machine with the
link-local address.
When you specify the machine's link-local address, a scope
ID must be appended to the address. For example, when
you use Internet Explorer 7 on Windows Vista to access the
address "fe80::203:baff:fe48:9010", the Ethernet adapter
local area connection number (e.g., 8) must be appended to
the address as follows: fe80::203:baff:fe48:9010%8
The machine cannot connect
to a Windows Vista
computer.
Assign an IPv6 address manually to the Windows Vista
computer, and then register the IPv6 address with the
machine to permit connection from the computer.
A device outside the router
cannot be searched.
When searching a device outside the router via SMB,
directly specify the address. Multicasting is supported only
within a local link (FF02::1).