WIZnet Developer Forum

[WIZ550S2E][Configuration Tool] How to fix module search problem ?

When the Tool does not search your WIZ550s2e module, please check the below conditions.

  1. check Ethernet port LED on module
    both led must be on. (active led is blink)
    If there is a problem, check your LAN Cable or Network Hub.

  2. if you are using 232 interface or 485/422 interface board, check the below conditions.

    • state1 LED : on
    • state2 LED : off
    • Hardware Trigger : off


    If state1 LED is still off, you have to Re-upload WIZ550S2E Firmware

    how to upload Firmware?
    how to do & source code : https://github.com/Wiznet/WIZ550S2E
    only hex file : https://github.com/Wiznet/WIZ550S2E/releases (download WIZ550S2E.hex)
    download tool : http://www.flashmagictool.com/ (version 11.20 recommanded)

  3. check the Configuration Tool version

  4. disable virtual machine

    • Control Panel > Network and Internet > Network and Sharing Center
      disable other network except ‘Local Area Connection’ for Ethernet
      (Disable WiFi on Laptop as well)
  5. enable UDP port 6550 in Fireware
    a. Control Panel > All Control Panel Items > Windows Firewall
    b. click Advanced settings
    c. click Outbound Rules and click New Rule…

    d. select PORT(O)

    e. select UDP(U) and type port number 6550

    f. select Allow the connection

    g. select Domain, Private, Public

    h. type Name and description

    i. new outbound rule registered

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