About two weeks ago all ftp uploads from my PC quit working. Logon and file access on the host server are OK but a put (upload) generally hangs partway completed until it times out. The result is the same for two different hosting companies I use (toad.net and pair.com) so it's at my end, not theirs.
Different ftp clients act differently:
- WS-FTP to one server hangs at 512 bytes sent until it times out; the other server shows all bytes sent but then hangs
- Dreamweaver shows progress up to near the end of file then goes to "waiting for server" and when I cancel or it times out, it has blown the original file away on the server (file listed with 0K)
- Namo WebEditor gets about halfway through the upload and then hangs.
Tech support at pair.com had me install and try another ftp client, WinSCP; it works fine on their site so I have a workaround for their site but not a solution.
On the theory that something's blocking an ftp handshaking response back from the server to my ftp client, tech support at toad.net had me try lots of fixes - disabling the XP firewall, disabling the firewall on my home network router (a new Belkin router installed a week or so before the problem started), disabling McAfee VirusScan. Nothing worked. They said all my ftp settings were correct.
I then did a system restore to a date two weeks ago, before the problem started. Problem solved! Immediately afterward, Windows prompted me to install several security patches to Windows XP SP2 and ftp quit working again. A system restore got ftp going for a couple of days, but now it's failing again. Windows hasn't asked me again about the Windows patches and my settings are to ask before installing.
I've been doing ftp uploads for many years and this is the first problem of this kind I've encountered.