Ann, an accountant, reports that after turning on her new laptop, she received a message stating her IP address is already in use on the system. She tried going back to her old desktop, which she now only uses for email, but received the same message. As a Network expert, you checked the account and sees a comment that Ann requires a special network setup to connect to the banking software. Explain what could be the cause of the message received by Ann, and how you would resolve the issue as a Network expert. Also, what "special network set-up" is required to connect to the Banking software.