I am using FireFTP 2.0.21 plugin on Firefox 32.0.3 to transfer files from PC to an Agilent E4438C Signal Generator. The instrument is connected via network switch to the PC.
There is no problem browsing the remote directories and copying files around. However, when idle for some time (a few minutes), I start getting an error message repeatedly. The log console of FireFTP shows:
NOOP 500 Command not understood - shazbot!
and I get a popup messagebox with the same error message:
Why do I keep getting this error message?
What is wrong with the
NOOPcommand (which is what triggers the error)?
Why does FireFTP repeatedly send this command?
As for the last question, I imagine it is done in order to keep the connection open and not time-out. If so, can it be disabled or changed frequency? At least, can I prevent this annoying popup window?