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<h4>Story:</h4>
<p>When you install RDS on a server which already uses the port 443, you will get the following error when you try to access RDWeb main page.</p>
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<p>Reason for this is the server you installed RDWeb on is most likely already using the port 443 or something else.</p>
<h4>Error Message:</h4>
<p>When trying to access RDWeb on the same server you&#8217;ll get the following error:</p>
<p>Service Unavailable</p>
<p>Http Error 503. The Service is unavailable</p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image001.png"><img style="margin: 0px; display: inline; background-image: none;" title="clip_image001" src="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image001_thumb.png" alt="clip_image001" width="851" height="199" border="0" /></a> 

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</p>
<h4>Troubleshooting</h4>
<p>To Troubleshoot, Let&#8217;s see what is using the port 443.</p>
<p>Run CMD or PowerShell as an Administrator and type the following command</p>
<pre class="EnlighterJSRAW" data-enlighter-language="generic">Netstat -anbo | findstr 443</pre>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image002.png"><img style="margin: 0px; display: inline; background-image: none;" title="clip_image002" src="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image002_thumb.png" alt="clip_image002" width="598" height="177" border="0" /></a></p>
<h4>Changing Port to 1443 or 8443</h4>
<p>Let&#8217;s try changing the Port using the RD Gateway Manager</p>
<p>From the Gateway Manager click on the Properties on the right pane >; Go to Transport Settings Tab and change the HTTPS port to 1443 or 8443</p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image003.png"><img style="margin: 0px; display: inline; background-image: none;" title="clip_image003" src="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image003_thumb.png" alt="clip_image003" width="1028" height="623" border="0" /></a></p>
<h4>Changing Ports using Registry</h4>
<p>Navigate to and make sure you first take a backup (Export the key)</p>
<p>[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\TerminalServerGateway\Config\Core]</p>
<p>Change the following registry value</p>
<p>IsUdpEnabled REG_DWORD 0</p>
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<p><a href="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image004.png"><img style="margin: 0px; display: inline; background-image: none;" title="clip_image004" src="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image004_thumb.png" alt="clip_image004" width="838" height="397" border="0" /></a></p>
<p>Backup and change the following port value to the intended one</p>
<p>[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\TerminalServerGateway\Config\Core]</p>
<p>HttpsPort REG_DWORD (8443)</p>
<p>Change the base to Decimal to type the write port number.</p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image005.png"><img style="margin: 0px; display: inline; background-image: none;" title="clip_image005" src="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image005_thumb.png" alt="clip_image005" width="814" height="388" border="0" /></a></p>
<h4>Restart Service</h4>
<p>From PowerShell restart the service</p>
<pre class="EnlighterJSRAW" data-enlighter-language="generic">net stop tsgateway
net start tsgateway</pre>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image006.png"><img style="margin: 0px; display: inline; background-image: none;" title="clip_image006" src="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image006_thumb.png" alt="clip_image006" width="582" height="156" border="0" /></a></p>
<p>Let&#8217;s see the listening port 8443</p>
<p>From PowerShell type</p>
<p>Netstat -anbo | findstr 8443</p>
<pre class="EnlighterJSRAW" data-enlighter-language="generic">Netstat -anbo | findstr 8443</pre>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image007.png"><img style="margin: 0px; display: inline; background-image: none;" title="clip_image007" src="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image007_thumb.png" alt="clip_image007" width="556" height="73" border="0" /></a></p>
<p>Let&#8217;s go to the main page and see if it works..</p>
<p>Voila! Finally it worked</p>
<p><a href="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image008.png"><img style="margin: 0px; display: inline; background-image: none;" title="clip_image008" src="https://www.moh10ly.com/wp-content/uploads/2020/07/clip_image008_thumb.png" alt="clip_image008" width="922" height="610" border="0" /></a></p>
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