Error during upload backup file from WLC

[mahjouboi11]

Hi,

I'm trying to take backup file from my WLC (8540), but I'm receiving below error, please your kind advices as I'm planning to upgrade my WLC.

FYI, I checked the permission in TFTP server, everything is Ok.

% Error: Config file transfer failed - Error from server: Undefined error code

thanks in advance.

[balaji.bandi]

what TFTP Server is this ? Do you have write permission on the folder ?

i was using Linux as TFTP (if i change folder rights to chmod +777 foldername) then i am able to write config to folder

[mahjouboi11]

Hi Balaji,

I'm using Tftpd32 app, in Windows machine, and there is no any errors in the server, I'm using same server with other devices, its working fine.

[balaji.bandi]

Is this corporate build Laptop ? worth looking some logs of FW windows ?

or add TFTP as trusted application.

[Kasun Bandara]

what is the tftp server you are using? check tftp server logs for any errors or warnings

[mahjouboi11]

Hi Kasun 

I'm using Tftpd32 with no errors

[Kasun Bandara]

guess your windows firewall and AV disabled? any output in server tftp interface? any messages?

[Scott Fella]

If you search the error, you will see many post on this.  Like the others mentioned, it is something to do with your tftp setup or something blocking.  Upload something else than the configuration to the tftp server and see what happens.  Your best bet is to try ftp or another device also.