Last night I started getting 451 errors when trying to upload files to my server. After alot of testing, I've determined the problem lies somewhere locally. I've rebooted my computer and my router, just to make sure there wasn't a glitch.
Here's the timeline, as I know it...
Friday, everything worked as normal
Saturday night I tried using FTP, and started getting the 451 Append/Resend errors.
The only configuration that has changed in the last couple of days is that I downloaded some new Microsoft security updates for my Windows XP OS. There were three patches that were installed.
I updated both my desktop and my laptop and I cannot use FTP on either computer.
That is the only thing I can think of that might be responsible. Has anyone else had this happen? Have you installed these three latest security patches?