Which of the following represents the MOST likely reason the customer is having problems connecting to the server that a customer is experiencing problems connecting to a server over the network during normal business hours. Historically, the connection has worked fine, but it has become intermittent over the past 24 hours. several times the share is available, and several times the customer gets an error; a technician researches the problem and discovers a new IT vendor visited the customer's site and installed several new computer equipment without consulting the internal team?