Plz solve it

a) As a consultant for the First National Bank of Monroe, you have been asked to solve a problem on the bank’s network that began on Monday. According to the bank manager, at the beginning of each day two of the 16 tellers have been unable to log on to the network. Two other tellers occasionally experience problems at the beginning of the day, but not if they get to work before everyone else. They receive an error that says something like “another machine is using that name”. When you arrive at the bank, the college intern who has been setting up the machines tells you that he is using a program called Ghost to clone all PCs from a single disk image. In other words, an exact copy of one machine’s software, operating system, and its properties has been copied to all of the computers. All of the PCs are brand new are running Windows 7, and use the same hardware and software. First National Bank’s network consists of two Windows 2008 servers and runs both TCP/IP and NetBIOS/NetBEUI protocols. It uses DHCP to allocate TCP/IP addresses. What might be preventing the two tellers from logging on to the network in the morning? (10 marks)”