With the proliferation of wireless devices, seamless authentication of devices at distributed locations (e.g., so-called Wi-Fi hotspots) may be essential for convenient use of various devices at these locations. Previous methods for authentication relied on an account-based method using a username and a password inputted from a user. This method may be awkward for mass-distribution of devices. Various embodiments disclosed may provide an authorization client that communicates with one or more servers that relies on client software and message authentication codes for authorization of network access.