Proftpd has become unreliable
 

I have proftpd running on a server machine. It has been running fine for a year or so but all of a sudden has become very unreliable, it is often (but not always) refusing connections. Nothing shows up in syslog to explain why the connection is being refused and I can't find a proftpd log.

Can anyone suggest a way to find and fix this problem? I have already removed it completely and reinstalled it.

My suggestion.. install and use vsftpd instead.. ;)

I have been using proftpd for few years with hundred of clients and it is reliable

Yes, I have always found the same and have it running on various different machines at home and work but can't figure out why this particular one has this problem. I can't find anything in the syslog to help and I am out of ideas. Can you think of anything that could have caued this problem? At the minute I have switched to wuftpd on that machine and it seems to be OK so far, I would stil like to find out what the problem was though.