Thanks for the reply. This is one of those DOH! things. I completely forgot about error(). Fixing that I found that the problem is really with the credentials cache. 
$cc=Authen::Krb5::cc_default();
$cc->initialize($clientp);

[download]
The initialize call fails with this error:

Credentials cache I/O operation failed XXX

Not very helpful to me but hopefully you can understand it. To me the puzzle is why does an attached console make any difference?

In reply to Re: Authen::Krb5 Problem by gw1500se
in thread Authen::Krb5 Problem by gw1500se

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