ID do evento 16:
link
This error might be caused by one of the following conditions:• The
proxy server settings are incorrect. • Proxy authentication problems
have occurred. • The connection between the client computer and the
proxy server is broken.
Seu Windows Update Agent não consegue encontrar as configurações de proxy do IE
Veja como o Windows Update encontra as configurações de proxy, de
link
The Automatic Updates service is configured to download and install
updates from the Microsoft Windows Update Web site The Automatic
Updates service can automatically download and install updates from
the Windows Update Web site. The Automatic Updates service does not
require user interaction because this service runs in the context of
the Local System account. The Automatic Updates service does not have
access to the user-specific proxy server settings that may be
configured in Internet Explorer. WinHTTP has been employed, instead of
WinInet in Internet Explorer, as the Automatic Updates service affects
system wide level configuration and should require administrator level
control. WinHTTP is considered as more appropriate in this type of
usage scenario. The Automatic Updates service can only discover a
proxy server by using one of the following methods:•The proxy server
is manually configured by using the Proxycfg.exe tool for Windows XP
and Windows Server 2003. For Windows Vista and newer OS, Netsh command
is available to manually configure the proxy server. For more
information about how to use the Proxycfg.exe tool, click the
following article number to view the article in the Microsoft
Knowledge Base: 289481 You may need to run the Proxycfg tool for
ServerXMLHTTP to work
•Web Proxy Auto Detect (WPAD) settings are configured in either of the
following locations in the network environment:◦The Domain Name System
(DNS) options ◦The Dynamic Host Configuration Protocol (DHCP) options
For more information about a related topic, click the following
article number to view the article in the Microsoft Knowledge Base:
816320 How to configure firewall and Web proxy client Autodiscovery
in Windows Server 2003
Resolução:
link
To use the Netsh.exe tool to configure a proxy server, follow these
steps: 1.Click Start, click Run, type cmd, and then click OK.
2.At the command prompt, type netsh winhttp set proxy proxyservername:portnumber
, and then press ENTER. In this command,
replace proxyservername with the fully qualified domain name of the
proxy server. Replace portnumber with the port number for which you
want to configure the proxy server. For example, replace
proxyservername with proxy.domain.example.com and replace portnumber
with 80.
...
To verify the current proxy configuration by using the Netsh.exe tool
To use the Netsh.exe tool to verify the current proxy configuration,
follow these steps: 1.Click Start, click Run, type cmd, and then click
OK.
2.At the command prompt, type netsh winhttp show proxy
, and then press ENTER.