Hello Everybody,
checked yesterday and noticed, that if i use JUST STANDARD "TCP W5100) Sketch, it happens (Connection is closing just (2 MICROseconds) after Arduino sends something and just after that it starting to establish a new connection over the next TCP port!
Checked everything with WIRESHARK.
WHEN I USE STANDARD ETHERNET sketch, from the Standard Arduino Library Example:
https://github.com/arduino/Arduino/tree/master/libraries/Ethernet
everything is just fine!
Should i place it as an Issue?