problem with NNTP server & authentication

[Jason R Mastaler <jason@mastaler.com>]

I am trying to access a new NNTP server that requires a username and
password for access from behind my firewall.  Thus, my gnus-nntp-server
is set to the firewall host whose nntp port is proxied to my ISP's
nntp port.  I've been using this setup for a while now without
problems, but in the past I've not had to authenticate.  Since my
account username on the newsserver differs from the account I run Gnus
on, I've set this in my .gnus:
 
(setq nntp-authinfo-function (function nntp-send-nosy-authinfo)) 
 
When I start Gnus, I get the prompt for my username which I
enter.  XEmacs goes black, and I get prompted for the my NNTP password
which I enter.  At this point, Gnus accepts the password, and then
hangs indefinately.  There is no network activity from this point on.
Gnus hangs with the red Gnus logo in the buffer, and I have to xkill
it and restart XEmacs.  At first thought, one might think that I've
typed the wrong username and/or password.  However, this isn't the
case since Mozilla news on the same machine can access the newsserver
fine using the same username and password I fed Gnus.  Further, Gnus
exhibits this same behavior regardless of whether I enter a correct
username/password combination or not.  I'm not sure whats going on
here.  Any ideas?  This is with Gnus v5.4.56/XEmacs 19.15.  Thanks.
 
   Jason R. Mastaler                      jason@mastaler.com