pkg/33209: Unable to update packages (via 'cvs up -dP') on a Sun server

[kuli0020%umn.edu@localhost]

>Number:         33209
>Category:       pkg
>Synopsis:       Unable to update packages (via 'cvs up -dP') on a Sun server
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          support
>Submitter-Id:   net
>Arrival-Date:   Thu Apr 06 18:15:00 +0000 2006
>Originator:     Roman Kulik
>Release:        
>Organization:
University of Minnesota
>Environment:
SunOS pigeon.oit.umn.edu 5.8 Generic_117350-13 sun4u sparc SUNW,UltraAX-i2
>Description:
PKGSRC was installed on this machine about a month ago.  CVS was installed via 
pkgsrc today (version 'Concurrent Versions System (CVS) 1.11.21 
(client/server)').
While trying to update packages collection:

nts@pigeon /opt/local/nts/netbsd-pkgsrc/pkgsrc$ cvs up -dP
anoncvs.netbsd.org: Connection refused
cvs [update aborted]: end of file from server (consult above messages if any)

tried updating individual package:

nts@pigeon /opt/local/nts/netbsd-pkgsrc/pkgsrc/www/firefox$ cvs up
anoncvs.netbsd.org: Connection refused
cvs [update aborted]: end of file from server (consult above messages if any)

which results in the same error
It takes about 30 seconds for this error to pop up.
>How-To-Repeat:
Run:
cvs up

on that machine (Sun system)
>Fix: