Daniele wrote:
Now I am wondering this: is possible that I am not able to connect because I have an ADSL 20 Mbit/s?
Nope.
Or there are other reasons?
Are you 110% certain the network is properly configured on your Amiga? Netmask, gateway, etc?
Are you sure the device driver is (properly) loaded?
Can the Amiga ping itself? For example, ping 192.168.1.3 (if that really is its IP) or ping 127.0.0.1?