Need help! All of a sudden I get this message...

[18:20:31] SmartFTP v2.0.997.4
[18:20:32] Resolving host name ""
[18:20:32] Connecting to Port: 45333
[18:20:32] No connection could be made because the target machine actively refused it.
[18:20:32] Cannot login waiting to retry (30s)

Never got this before until the last few days. Guy on other end says it is on my end. What could be wrong? Any ideas anyone? Any help would be greatly appreciated. Thanks in advance.

Hi, check the settings of your firewall.