A method and system for configuring a network device according to the identity of a plurality of removable wireless communications devices (RWCDs), the method comprising the steps of: determining the identities of the plurality of RWCDs; determining whether the network device is capable of using the plurality RWCDs; retrieving policy settings from an authorized party or a storage medium of the network device according to the identities of the plurality of RWCDs; determining priority of policy settings; and configuring the network device according to the policy settings. The priority of policy settings are based on the positions of the RWCDs when there are conflict among policy settings. The plurality of RWCDs are plugged to the network device and the network device provides wireless wide area network (WAN) connectivity through the plurality of RWCDs.