Computers users and the server

Question

Our small business has 4 desk top computers (using Lion) that connect to a server (in house mac mini).  Each computer has 4 users that can log in and access the server.  We are being advised that the computer should only have an administrator and single user log in to make things less caotic and complicated.  We have always been set up with independent users.  What changed was the server was hosted on one of the desk tops.   When switching to Lion we added the server.  IT is telling us its like running 16 computers on the server, and causes lost connection. 
Please advise. 

Answer 1

There is no reason you should have to have only one user account per computer. First of all, your Mac mini server should be capable of handling 16 connections without any problem. Second, presumably only 4 of those are in use at one time.
Some more details might be useful here. What are you using the server for? What Server operating system is it using? (10.7 or 10.8 presumably)
There is a section of Apple Support Communities that is devoted to server issues where you may be able to get more specific answers to your questions.
For 10.7 Server go here.
For 10.8 Server go here.
Best of luck.