We are a W2k3 AD environment with XP clients. Two main GPOs - Public users, Staff users (we are a public library).
On the floor, we have a pc set up where patrons can come in and get on the internet. Printing from this pc (logged in as a public user), to a shared printer on a staff pc at the reference desk, has been working fine for the past six months until two weeks ago. Then out of the blue, the printer is no longer connecting, it is saying "Unable to connect. Access Denied". No changes have been done to either the network, user accounts, or the AD.
On one occasion, it reported the spooler was not started. Checked the staff pc and the spooler was running.
On several occasions, it will work in the morning, but then stop working in the afternoon. Reboots of the public pc and staff pc have not resolved issue.
Logging on to staff pc, I can use the shared printer fine. Looking at other mapped network printers some are appearing fine, others are listed as "Unable to connect. Access Denied".
I'm completely out of ideas.
Our building wasn't designed with networking in mind, so there are a couple linksys switches tucked away in between the locations and the routers.
Ideas? Other things to check? Need more info?