Maximum No of connections && win2k

[Patrick Okui <patrick at eahd.or.ug>]

Hi all,
There is a small LAN - actually an Internet cafe with 29
computers - with about 4 (or less) running windows 98
and the rest running windows 2000 professional.
One of the machines (call it admin) runs the admin 
interface for the cafe timing software  and the rest run 
the client version.

This same admin machine recently had a Canon LBP 810
printer installed to replace whatever printer it had before.
But, when I tried to install the new printer on the other 
machines, I got through 8 of them and after that I got a
message which went something like...
"The connection to this machine has been denied because
  it has reached its maximum number of connections".
I tried tweaking the registry but all I could find 
(from www.winguides.com) were ways of reducing the time 
in which tcp connections are kept in a WAIT state... and 
not much about NetBIOS connections.

Could anyone tell me what's going on....what I'm missing and 
how to fix it??? - and as an afterthought... will changing admin's 
OS to win2k server help ?? Because, this has happened before, 
but the problem just "went away" after a few reboots.... though
not this time....On some of the machines, (actually most of them)
I did not delete the old printer (in Start->settings->printers)...
does this have an effect on the number of connections the 
machines try to make to admin???

Thanks,
Patrick.