":Error - Bad file number" - Please Help Me Fix This Once & For All

[ksbolton1]

Hello all. I really hope I can get some help here, because I think I've done everything correctly in this kron and ftp config (shown below). What am I doing wrong here? It works well for some of my 2960-S and one of my 2960-X switches. Works fine for all of my 1941 routers. I can't understand what causes the ":Error - Bad file number" message. 

conf t

ip domain-lookup
ip name-server DC_DNS1 DC_DNS2

archive
path ftp://<server_hostname>/Switch/<switch location>/<switch hostname>/$h.cfg
write-memory
exit

ip ftp username ftp_user
ip ftp password ftp_password
kron occurrence Third_of_month at 3:00 3 recurring
policy-list Config_Backup

kron policy-list Config_Backup
cli write memory
exit
exit

[ksbolton1 · Accepted solution]

Ok, just to follow up re: this issue. I completely threw kron out the window and I've been using Python scripts to fully automate backup procedures. Thank you, David Bombal.