No connection

Downloaded and installed SmartFTP (ver. 2.0.995) yesterday, and it's working fine on my laptop.
But not on the desktop Have Norman firewall/antivirus installed on both machines and disabled it - with no luck.

Log says:
[05:51:51] SmartFTP v2.0.995.19
[05:51:51] Resolving host name "XXXXX"
[05:51:51] Connecting to XXX.XX.XX.XXX Port: 21
[05:51:52] Connected to XXXXX.
[05:51:57] Cannot login waiting to retry (30s)...
[05:51:57] Server closed connection

Any ideas?

Hi, try to raise connection timeout to 60 or 90s, also check with ftp.exe if it connects.