KERBEROS_V4 rejected
 

can anyone tell me why i would get this

[root@dur-arch2 ~]# /docarch/market.fetch.mkt
-> ftp-ing archive docs to the LOAD area
Please login with USER and PASS.
Please login with USER and PASS.
KERBEROS_V4 rejected as an authentication type
Login incorrect.
Login failed.


All help appreciated