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Problems During the Setup

This page explains the troubleshooting procedures to resolve problems you may experience while installing SD-300/SD-310AN.



SD-300/SD-310AN is not displayed in the search result of Serial Device Server Setup.

When SD-300/SD-310AN is not displayed in the search result of Serial Device Server Setup, the cause need to be determined from the installation status, network environment, and status of PC used for the configuration of SD-300/SD-310AN. When using a wireless LAN product, please also refer to the Wireless LAN Problems as described later.

Solution Please check the LED status of SD-300/SD-310AN and the Ethernet Hub SD-300/SD-310AN is connected to. If the LED indicates improper status, replace the AC plug and other cables, and reboot the connected devices.

Solution It takes up to 30sec for SD-300/SD-310AN to get ready after it is powered on. Please wait until SD-300/SD-310AN becomes ready and then click the Search in the Serial Device Server Setup.

Solution During the initial configuration, place SD-300/SD-310AN and PC in the same network segment.

Solution Please reset SD-300/SD-310AN to the factory default setting. Refer to Reset to Factory Default for details.

Solution Please abort your security software. Refer to FAQ in our website ( http://www.silexamerica.com/) for details on how to abort security software.


Communication error occurs when configuring with Serial Device Server Setup.

When a communication error occurs during Serial Device Server Setup, the cause needs to be determined from the settings of the PC used for the configuration.

Solution During the initial configuration, place SD-300/SD-310AN and PC in the same network segment.

Solution Please select Obtain an IP address automatically at Internet Protocol (TCP/IP) Properties of the PC.
Otherwise connect the PC and SD-300/SD-310AN to the standalone Ethernet Hub and see how it works.

Solution Please reset SD-300/SD-310AN to the factory default setting. Refer to Reset to Factory Default for details.


How should I determine the way to assign an IP address to SD-300/SD-310AN?

There are two ways to assign an IP address to SD-300/SD-310AN; one is to Get IP address automatically from DHCP server and the other is to Assign IP address manually. Choose the way to assign an IP address according to your environment.

Solution You can use Get IP address automatically from DHCP server. As SD-300/SD-310AN is set by default to Get IP address automatically, SD-300/SD-310AN will obtain an IP address appropriate to your network environment from the DHCP server just by powering up SD-300/SD-310AN.
Refer to Reset to Factory Default for details on how to reset SD-300/SD-310AN to the factory default settings.

Solution Please use Assign IP address manually. Keep in mind of the following points regarding the IP address to assign to SD-300/SD-310AN.  
  • Assign an IP address unique in the network.
  • Assign an IP address that has the same address class as the PC that will use SD-300/SD-310AN.
    e.g. When an IP address of the PC is "192.168.0.xx", assign an address such as "192.168.0.100" that is not used by other network devices.

(Tips about the IP address)

  • An IP address is a unique number for identifying network devices. An IP address is indicated with four numbers divided by a period (.), for example "192.168.0.1". The integer from 0-255 is used for each number.
  • An IP address is, depending on the number assigned, categorized to 3 classes below.
  • Numbers making up the IP address are either network numbers indicating network, or host numbers indicating each network device; each number indicates the different meaning based on the IP address class. Each class is categorized as the following diagram which is indicating a network number as n, and a host number as u. An IP address with the same network number must be assigned to the network devices in the same network segment.
  • There is an address range in the IP address called the private address that could be used freely. In the LAN environment not directly connected to the internet, an IP address is assigned within the range of the private address.

    First 1 digits in IP address Class Definition of IP address
    n: network number
    u: host number
    Size of the network to be used Private address
    0 - 127 A n.u.u.u Large network 10.0.0.0 - 10.255.255.255
    128 - 191 B n.n.u.u Mid-size network 172.16.0.0 - 172.31.255.255
    192 - 223 C n.n.n.u Small network 192.168.0.0 - 192.168.255.255


An error message is displayed when installing SX Virtual Link for Serial Device Server.

Solution If SX Virtual Link for Serial Device Server Ver.3.3.0 is installed on your PC, you cannot install the newer version of SX Virtual Link for Serial Device Server. Remove the older version first and try installing the newer version again.


Is it possible to install "SX Virtual Link" (USB device management utility) and "SX Virtual Link for Serial Device Server" (serial device management utility) on the same PC?

Solution You can install "SX Virtual Link for Serial Device Server" on a PC which has "SX Virtual Link" already installed.
However, if "SX Virtual Link" is installed on a PC which has "SX Virtual Link for Serial Device Server" already installed, you will not be able to link to serial devices. Remember that "SX Virtual Link for Serial Device Server" can be used to discover, link to and unlink from both USB devices and serial devices. If "SX Virtual Link for Serial Device Server" is installed on your PC, do not install "SX Virtual Link".


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