📄 faq_upnp.html
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<title>How to set up UPnP</title>
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<h1>Setting up UPnP</h1>
<p>Universal Plug And Play (UPnP) is a technology to allow, among other
things, Internet applications to configure home routers and gateways,
bypassing manual port forwarding configuration. UPnP was introduced in
Windows XP and is supported in that and later versions, including
Windows Server 2003. To take advantage of UPnP, you must have support
enabled in Windows and UPnP capable hardware (typically a broadband
router using <acronym title="Network Address Translation">NAT</acronym>
traversal). If you meet both of these requirements, setting up DC++ is
normally a simple process. <span style="font-weight: bold;">UPnP
support is only in DC++ 0.4033 and later.</span></p>
<p>To enable UPnP on DC++, open the Settings panel, select Advanced,
scroll down to the bottom, enable "Use UPnP Control". Restart
DC++. If your UPnP system is setup correctly, DC++ will now
automatically create the required port mappings for DC++ to operate in
Active Mode. It will also detect your external IP address, and switch
into Active Mode. </p>
If UPnP works successfully or unsuccessfully, fill out <a
href="http://fp.mgillespie.plus.com/upnpresults.htm" target="_blank"
class="external">Mark Gillespie's UPnP feedback form</a> <img
title="External Link" src="external.png" border="0" height="10"
width="10"> so other users can know which configurations work.
<h3>Troubleshooting</h3>
<p>If you are having trouble getting this all to work (or see messages
in the DC++ <a href="settings_logs_and_sound.html#system">system.log</a>
like "Failed To Create Port Mappings"), and you are sure you meet the
minimum requirements mentioned above, firstly, download a UPnP
diagnostic tool. The recommended one is <a target="_blank"
href="http://www.mgillespie.plus.com/UPnPTest.exe" class="external">Mark
Gillespie's UPnP test tool</a> <img title="External Link"
src="external.png" border="0" height="10" width="10">. This program
will tell you what network
interfaces on your computer support UPnP. If none of your network
interfaces are reporting UPnP capabilities, try the following
suggestions: </p>
<ol>
<li>Ensure your UPnP hardware has the UPnP service switched on (some
routers default to off), consult your manufacturer's documentation.</li>
<li>Ensure Windows UPnP services (Control Panel -> Administrative
Tools -> Services) are running. "Universal Plug and Play Device
Host" and "SSDP Discovery Service". Both of these XP services should be
set to "Automatic" startup and "Started" status:</li>
<li>Switch on the UPnP User Interface. To do this: Open "My Network
Places", and in the Network Tasks Panel, select "Show icons for
networked UPnP devices".</li>
<li>Reboot both your PC and your UPnP device (router).</li>
<li>If the diagnostic tool is still not reporting any UPnP devices,
considering more drastic actions like upgrading your router firmware,
as many routers have UPnP implementation bugs.</li>
<li>If you do not see your router as a network device in "My Network
Places" after several minutes, UPnPTest will fail to create an UPnP
mapping to the router, resulting in something looking like: <span
style="font-style: italic;">INFO: Adapter #0 - 192.168.8.17 - UPnP
Disabled</span><i>.</i> Make sure the windows firewall or your third
party firewall is not blocking UPnP packets. To do this, go to Control
Panels -> Windows Firewall -> Advanced Tab -> Security Logging
-> Settings. Enable <span style="font-style: italic;">Log Dropped
Packets</span>. The log file is located at: C:\WINDOWS\pfirewall.log
If you see any packets being dropped with the port 1900 or 2869, the
the firewall is misconfigured and <span style="font-weight: bold;">is</span>
preventing UPnP from working.</li>
</ol>
<p>If you have done all of this, and are still having UPnP problems,
send me an email, I will try to help. <a class="external"
href="mailto:mark.gillespie@gmail.com"> mark.gillespie@gmail.com</a> <img
title="External Link" src="external.png" border="0" height="10"
width="10"></p>
<p><span style="font-weight: bold;">Very important note:</span> I will
ignore ALL support requests from people who
have not tried the above troubleshooting tips and do not provide at
minimum the following information:
<br>
<br>
</p>
<ul>
What steps you have already done.<br>
Your UPnP device model number and firmware version. <br>
Your operating system and service pack level. <br>
What firewall you are using (if any).<br>
</ul>
<br>
Without this information, please do not expect a reply... I'm
sorry I have to be so strict, but some of the emails I have received
need to be seen to be believed, and the crystal ball is currently out
of action.
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