Hi all, I have barcode scanner of TTL OUT connection with arduino and w5100 ethernet shield..after some punches of barcode scanner ..server closes its connection itself..i am using SOCKETTEST Utility to listen ..on TCP PORT...arduino dont recognize if server closes connection.. :frowning: the code…

Ethernet connection closes connection after some barcode scanner inputs

akshay123 October 31, 2017, 11:57am 8

what is connect_error? can you send whole code ?

Topic		Replies	Views
Ethernet shield doesn't detect TCP disconnection Troubleshooting	10	9698	May 6, 2021
Ethernet shield problems! Time to update library? Troubleshooting	50	62613	May 6, 2021
Arduino Ethernet Freezes Networking, Protocols, and Devices	17	5818	May 6, 2021
Ethernet shield not allowing repeated connections Frequently-Asked Questions	20	7630	May 6, 2021
Ethernet server() problem. Syntax & Programs	9	2662	May 6, 2021