One or more devices are provided that receive a request, from a client device, to connect to an operator network. The request is received at a request time. The one or more devices obtain information identifying a connect time at which the client device is permitted to connect to the operator network and determine whether the request time matches the connect time. If the request time is determined to be different than the connect time, the one or more devices reject the request to connect to the operator network based on the request time being determined to be different than the connect time. If the request time is determined to match the connect time, the one or more devices establish a communication session between the client device and the operator network based on the request time being determined to match the connect time.