Incorrect session id returned

[stalkerMPro]

I think there is a bug in file tcpip.cpp EtherCard::clientTcpReq so it returns '0' as session id for tcp connection

tcp_fd = (tcp_fd + 1) & 7;
return tcp_fd;

tcp_fd initiates with value 0 and is cycled from 1 to 7, when previous tcp_fd equals 7 the next value will be
(7+1) & 7 = 0,
but must be again 1. Added 1 line before "return" and solved my problem.

tcp_fd = (tcp_fd + 1) & 7;
if(tcp_fd==0)tcp_fd=1;
return tcp_fd;