I agree with Sarond a reboot will probably fix it assuming that all other settings are correct
make sure you are using FTP port 21
winscp will default to port 22
when my PC is connected direct to the 3300 LAN port
are you referring to the second port on the controller ?
is this the port that you can get to the web interface from ?
if not perhaps there is a vlan applied - might have to use the vlan_off command?
I intend to add 53xx TFTP files: Main,Boot and L2.
The 3300 is on release 5.0
what files are you trying to add and for what reason ?
what is the full software version ?
is it 5.0 11.0.0.102 or one of the patch releases ?
If I never did anything I'd never done before , I'd never do anything.....