I think your point 6 sums up what I have found exactly! I was getting all sorts of random errors, but the main one was the the specified port is invalid one.
Originally Posted by themightymrp
I'm following your route and using scripts, but I am using a logon script instead with loopback processing. It speeds up the machine startup time a bit, but also ensures that the script fires as late as is possible, maximising the chances of it being successful. I also have a logoff script to delete the queues again at log off, so that print queues removed from the server are not left hanging around for ever and ever.
I know this is a bit late, but I found with the specified port is unknown error even a script didnt always deploy the printer. I eventually found a microsoft hotfix Kb2748246.
and here is a link on how to deploy hotfix Kb2748246 as its not in the a wsus catalogue !!! Grrr
I spent ages trying to solve this problem so im hoping this post might help some people.
Thanks Chunks, i'll give this a go when I get a chance. Had been driving us nuts in the past until I changed to scripts.