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2N® NetSpeaker unit is not displayed in menu Destinations & Zones

There could be several reasons, why   2N® NetSpeaker unit is not connected to the NetSpeaker server :

  1. Older software version 1.2.5 requires NsP unit received automatically assigned IP address

    • CAUTION even if other devices on the network receive IP address automatically, NetSpeaker unit does not have get it. Due to restrictions set by the IT department in the network. This setting automatically assigns IP addresses only known / registered devices in the network based on their MAC addresses!

    • this network setting (DHCP server assigns IP addresses to registered IP devices only) is solved in software version 1.3.6 and higher, which can in menu Administrator  > Netspeaker scanner display NsP units connected in local LAN network based only on their MAC addresses (NsP server sends broadcast into the networks and NsP unit responds to it). Then in NetSpeaker scanner is displayed information DHCP, but shown IP address is not allocated. It is displayed:
      In this case, you can provide the MAC address of the NsP units to the IT department and they will register it and allow automatic assignment of IP addresses.

      Second option is to turn the DHCP client OFF and setup the IP address manually. In this case it is necessary to know some free IP address, which can be used for NsP unit in the network. It means, this IP address (the one you would like to use), is not assigned to any other IP device in the network (you can use ping command to check it). Do not forget to setup the IP mask = subnet of the network.

      Manual setting could look like this: IP Address: Mask:

  2. Firewall can also block connection of 2N NetSpeaker unit to the server

    • Switched firewall ON can cause that if 2N® NetSpeaker unit disconnects from the server and then tries to connect again via the same port, firewall (eg, ESET Smart Security) will not let it go through.


    Picture below shows the situation, when the network automatically assigns IP addresses (there is DHCP server in the network), but the device (e.g. NsP unit is not registered = IT department does not know its MAC address). In this case IP address for NsP unit would not be automatically assigned .

Example of manually assigned IP address and IP mask, when the DHCP client has been switched OFF:

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