connection failure

Hi, ive been using smart ftp for about 4 days. Everytime i have opened it, it has connected fine. Today i went to use it and i got this: [14:26:09] SmartFTP v2.0.997.2
[14:26:09] Resolving host name ""
[14:26:10] Connecting to XXX.XXX.XX.XXX Port: XX
[14:26:32] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
[14:26:32] Client closed the connection.
[14:26:32] Cannot login waiting to retry (30s)...
if anyone has a similar problem or can offer anyhelp, it would be appreciated. Thanks.