Bedienungsanleitung Terratec NOXON 2 radio for iPod (Seite 53 von 61) (Englisch)

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NOXON

B2 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. The descrip-

tion of the network port on page 10 already brought up this topic, but please also see “4.3 For deeper un-

derstanding: about routers, SSID, MAC & IPs” on page 18 for more information. As is often the case in life, it

helps to be on good terms with your favorite administrator. Heartfelt thanks and a charming smile often

goes a long way.

2. No radio link between the server and NOXON

The fact that an MC broadcast is used for the first connection attempt between the client and server makes

this initial connection relatively vulnerable. Depending on the network adapter, the MC range is often not

routed at all in the network, especially when using wireless adapters. A number of local packet filters (such

as firewall programs) see this form of communication as an attack on the system and thus filter it. Most

better-quality firewall programs initially reject these broadcasts, but can be set up to permit unrestricted

communication by entering the NOXON as a so-called trusted host.

The Windows firewall, for example, offers exceptions for a variety of protocols and technologies, and the

default option “Universal Plug and Play” in the advanced settings allows unrestricted traffic for UPnP ser-

vices.

If this option is not available, disable local packet filtering for the NOXON's IP address. In this case it's of

course advisable to assign a fixed IP address to the NOXON to ensure that the rule does not need to be ed-

ited continually. You should also perform a check to determine whether Multicast communication is even

possible. A variety of scenarios are conceivable here depending on the network adapter, especially in the

case of Windows-based ad hoc wireless networks. You should also determine whether communication with

the NOXON is possible at the most basic level by pinging it.

• Open the configuration of the NOXON, select Status and scroll to the IP Address item. If “being config-

ured” is displayed here, then the device has not yet found a connection to the DHCP server, or a DHCP

server is not available. In this case, check your network configuration before proceeding.

• Now, ping the NOXON from the computer running the music server. Open the command prompt (Start >

Run > and enter “CMD”) and enter “ping 192.168.1.157”, using the actual IP address of your NOXON,

of course. If you receive replies to your ping (the time in milliseconds until the reply was received will

be displayed), then basic communication is possible. If that is not the case (“host unreachable”), then

carefully check your communication—especially with regard to encryption and IP addresses.

ENGLISH 53

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Terratec NOXON 2 radio for iPod Seite 53

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