DynDNS Service - Questions and Answers

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Do you have questions about the tool DynDNS Service? On this page you will get helpful answers to frequently asked questions.

• The DynDNS Service reports 'IP address missing' even though the IPv4 address has been detected. Why?
  Starting from version 2.1.1 the detection of IPv4 and IPv6 addresses is enabled by default and the IPv6 address has been missed. If you want to configure DynDNS Service to detect IPv4 or IPv6 addresses only, please deactivate the corresponding option "Detect IPv4" or "Detect IPv6" in the tab "Sources" of the configuration dialog of the DynDNS Service.
  
• The configured timeout is reached for all active internet url sources. Why?
  Possibly the DynDNS Service takes no direct connection to the Internet, but must accept the connection through a proxy and the proxy has not been activated and / or configured in the DynDNS Service. In the "Miscellaneous" you can customize the settings of a proxy.
• The DynDNS Update always runs in a timeout, although the detection of IP addresses works from the Internet. Why?
  If the DynDNS Service be able to connect to the Internet through a proxy, you must activate the use of the proxy in the settings for each DynDNS provider separately. Change to the edit mode of the desired provider. Under the tab 'Provider' you can activate use of the proxy.
• Why the existing IP address of my network adapter is not recognized?
  The detection of IP addresses from network adapter assumes that the system is directly connected to the Internet and the network adapter has assigned a public IP address. The DynDNS Service accepted IP addresses of network adapters only if it is not a private IP address.
• Is there a detailed help file for the DynDNS Service?
  A classic Help function, there is only the DynDNS Service, version 1. As of version 2, the tooltip function is advanced so that you targeted assistance to almost every element in the dialogues of the DynDNS Service obtained by moving the mouse on an element.
• The system tray icon of the DynDNS Service is no longer displayed. Why?
  A common reason is that Windows after some time hides the icons of rarely used applications in the notification area. However, this does not affect the operation of the DynDNS Service: Once a notification by the DynDNS Service is issued, Windows shows hidden icons temporarily again, so that the notification can not be lost. If you still want to keep their DynDNS status at a glance, you will learn in this guide from Microsoft on how to configure Windows so that all icons from Windows are displayed again.
• The DynDNS Service Icon is always hidden in the notification area, even though a permanent display has been configured in Windows. Why?
  
  Windows has stored several registries of DynDNS Service in the notification area's cache and has not used the registration of DynDNS Service, which had changed to permanent settings. You can see this in the system control under "Notification Area Icons". If there several entries of DynDNS Service are displayed, these are duplicate registrations of DynDNS Service.
  You can use this small batch program to refresh the Notification Icon Cache on the affected computer. The batch program first kills all Windows Explorer instances (the Windows taskbar disappears), then deletes the cache in the registry and restarts Windows Explorer (the tasklist appears again). With start, the Notification Area Icons Cache is rebuilt by Windows Explorer. However, only partially: It is better to restart the computer again for a complete rebuild of the Notification Area Icon Cache.
  After this, the permant display for DynDNS Service must be configured again, but Windows will remember it this time.
• Both the installation and uninstallation of the DynDNS Service is canceled. What can I do?
  Microsoft's Windows Installer saves a variety of information in the registry and in Windows system directories to enable later easy uninstallation. If there are irregularities there may be so-called deadlock situations: The DynDNS Service can neither be installed nor uninstalled. However, the DynDNS Service as of version 2.0.2 uses an installer engine that allows them to get out of this situation in three steps:
  1. Please download the Windows Installer CleanUp Tool and start it on the affected system. Remove the DynDNS Service installation from the list of all installations.
  2. Locate a file DynDNSServiceInstaller.exe file in the directory "C:\ProgramData\Package Cache". If you find any file, delete it.
  3. Call "Local Services" and stop Windows service "DynDNS Service".
  Now the installer of the current version of the DynDNS Service should again offer a new installation of DynDNS Service.
• Why is the DynDNS Service Icon not displayed in the SystemTray after installation?
  
  In particular, Windows 10 sometimes rejects the appearance of the icon in the SystemTray, without giving reasons for it. However, the display of the DynDNS Service icon will work again after a restart of the operating system.
• DynDNS updates always run out of time using provider spDYN. Why?
  
  The provider announces in the header of its reply that the answer itself would be formatted in HTML (Content-Type: text/html), but then transmits the response as plain text plain without HTML format. Because the announced answer is missing, the DynDNS Service will not abort until time out; however, searches the plain text data sent so far for a valid response, so that the function remains basically guaranteed.

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