Symptom:

Installing nw65sp7 caused all iPrint printers on the workstations to show a
status of "Not Available" or "Error".




Unique Environmental factors involved:

This server was also the groupwise server and ran groupwise webaccess on
apache2.
A number of *named* virtual hosts had been defined.




Test which revealed problem:

Commented out the NameVirtualHost statement from httpd.conf and restarted
apache.
Printers started communicating




Fix:

Add a virtual host with the same name as the print manager name
as referenced on the load line

ndpsm print_manager /noipx /dnsname=print-manager.domain.com

in this case it was as follows

<VirtualHost *>
ServerName sfk1-manager.domain.com
DocumentRoot SYS:/apache2/htdocs
</VirtualHost>



I would LOVE to know why everything worked without this before sp7, and why
sp7 breaks it.