An extended TCP/IP library for the ENC28J60

hi pijey
I think the ultimate solution is to buy a new one, I like this
work.
already connected but this happens.
if the ip is 192.168.1.15 and make a ping
I said that the timeout
and if the change by
192.168.0.15
send and receive but I get an error destination unreachable host.
help