For example, users may be allowed to read documents but not to make changes to them. You have privileges to use the printer. You have installed the correct printer driver on your computer. That you are choosing the correct printer. Unfortunately, there is often more than one printer with the same or similar name on the network.
Many people find they use the same resources on other computers every day.
Therefore, they establish a permanent connection to these resources so that they appear on the desktop each time the computer starts. Each time you start your computer it prompts you for your username and password. Make sure there is a check in the check box to the right of the resource in the Chooser window. If not, click on the checkbox. Verify that the computer or server you are trying to connect to is turned on.