Unstable connection problem with w5500 mini ethernet module

Projects Networking, Protocols, and Devices
1

Hello everyone, I use mini ethernet module with w5500 with arduino nano. The problem is when I supply my board with dc current sometimes system works great but sometimes(unplug dc voltage and then plug it again ) I have connection problem. Leds on the ethernet socket like :

When I have connection problem : Firstly green led is on for 0.5 second or so and then green led is off, at the moment that green is off, yellow led is on for 0.5 second or so and then yellow led is off. Led status goes on like this repeatedly.

what might be the problem with ?

2

what might be the problem with ?

Wiring between the Nano and the module, Ethernet cabling, power supply, bad hardware. It can be anything.

You didn't provide enough information. Start with providing a link to the used Ethernet module documentation.

3

The chip on the module's datasheet link :

https://www.google.com/url?sa=t&source=web&rct=j&url=https://cdn.sparkfun.com/datasheets/Dev/Arduino/Shields/W5500_datasheet_v1.0.2_1.pdf&ved=2ahUKEwiahIbc8q7pAhXMgVwKHf9mCm4QFjAAegQIAxAB&usg=AOvVaw0n9Srp_vXgCA6ya8kzQwhx

Module I am using


Wiring between and power supply has no problem I think. Problem doesnt happen every time I supply with power. Sometimes happens. I search in another platform, it is said to be related some damping resistor on the board. I tried but didnt work out in my case module didnt work at all leds turned off.

I use this module with arduino ethernet library. It seems to me This problem has nothing to do with arduino code, stem from module board itself