WIZ107SR-TTL doesn't respond



We are using your WIZ107SR-TTL in one of our designs and we have relevantly large number of devices/modules which are not responding to you config tool or serial debug.

Most of these devices were initaliy reponding but stoped working for unknown reason.

Kidnly advice what can be done



Hi, @Yaniv_Reibenbach.

What action was causing the problem?

Please let me know more details.
For example, firmware & config tool version, test procedure, etc.
It would help to find the cause of the problem.

Thank you.


The probelms happens in diffrent scenarios:

  1. Stopped working after configure once or more
  2. Stopped working at customer’s site while no changes occuer and no body touch
  3. Firmware upgrade failure
  4. Few device never worked even once - from production they don’t work



Please, we need to detail information.
What’s happens in module? When your WIZ107SR-TTL not worked, It was turn off LED? or Is the TCP connection lost?

How made to whole your system?
First, We want to know that why happens this action to WIZ107SR-TTL.
So please tell me detail information.




WIZ107SR is used in various applications around the world.
We need more clues to solve your problem - The following information will help us.

  • Your applications
  • Network configuration
  • Device settings and Firmware version
    • If possible, capture images of configuration tool settings (all tabs)