up2date problem

[Guo Yang]

I have these error messages with the new test up2date package 
(up2date-3.9.10-2):

Traceback (most recent call last):
  File "/usr/sbin/up2date", line 1147, in ?
    sys.exit(main() or 0)
  File "/usr/sbin/up2date", line 642, in main
    up2dateAuth.updateLoginInfo()
  File "/usr/share/rhn/up2date_client/up2dateAuth.py", line 140, in 
updateLoginInfo
    raise up2dateErrors.AuthenticationError("Unable to authenticate")
up2date_client.up2dateErrors.AuthenticationError: Unable to authenticate

But in /var/log/up2date I have such logs:

[Mon Aug 25 11:05:04 2003] up2date logging into up2date server
[Mon Aug 25 11:05:04 2003] up2date successfully retrieved authentication 
token from up2date server
[Mon Aug 25 11:05:05 2003] up2date logging into up2date server
[Mon Aug 25 11:05:05 2003] up2date successfully retrieved authentication 
token from up2date server
[Mon Aug 25 11:05:05 2003] up2date updating login info
[Mon Aug 25 11:05:05 2003] up2date logging into up2date server
[Mon Aug 25 11:05:05 2003] up2date successfully retrieved authentication 
token from up2date server

It used to work correctly before the update.  What is the problem and 
how to solve it?

Thanks.

Guo