Bedienungsanleitung Albrecht DR440i (Seite 20 von 24) (Englisch)

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Albrecht DR440i

20 English

can happily keep your cherished iPod permanently perched on the DR440i, so that it will always be ready for

use on the move or present and ready for local playback via the DR440i! Even when the DR440i itself is not

switched on, you can always count on a fully charged power supply—and you can see this because the check

mark should still appear in the iPod display even when the DR440i is switched off.

Appendix

A - Known issues

1. Wired connection (LAN)

As you may already know from other wired network devices, establishing a link

essentially just involves plugging in the cable. Please ensure that a sound

physical connection is present (left LED lit orange). If that is the case and a

connection is still not available, then the problem will be either the settings of

your gateway (the computer in your network that manages the connection to the Internet) or those

of your router. As is often the case in life, it helps to be on good terms with your favorite administra-

tor.

2. No radio link between the server and DR440i

Troubleshooting may prove somewhat more involved in this case, and so we would like to refer you

to the detailed manual for further information. Here is a brief checklist as initial assistance:

 Is the music server running correctly?

Are all of the configuration files correct and does the server appear in the Processes list

(CTRL + SHIFT+ ESC)? If it is not listed, check your server-side configuration.

 Is there a conflict with your filter or firewall rules?

The firewall can be disabled completely as an extreme measure when running Windows,

or its functionality should not be extended to cover the DR440i. Disabling it briefly for the

test can be useful when hunting down the problem.

 Is any form of communication with the DR440i possible?

A ping to the DR440i's IP address as described above will clarify this question. If the

DR440i doesn't respond to your ping, it certainly won't be able to communicate via UPnP.

If you are not successful here, then you have a different network problem which can range

from a typo in the encryption key to massive configuration errors.

3. The connection fails after several minutes

This points toward one of the small peculiarities of the UPnP standard. The useful communication

begins on one of 1024 ports and changes regularly during operation. Not all firewall applications

recognize this knocking on various doors as a continuous connection. Depending on its configura-

tion, the firewall may decide not to ask the unknown visitor in.

Depending on the firewall application, the following actions will solve the problem:

• Specifying the DR440i (with a static IP) as a so-called trusted host, i.e. a device whose com-

munication is guaranteed not to be malicious.

• Allow the server to communicate with the DR440i on ports 1024-65535.

• Activate an exception for “UPnP Framework” in the Windows XP firewall, or set other firewalls

to allow UPnP communication.

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