my friends ipad is connected to a wifi network in his office. his office use the mac address of the devices to register devices to their wifi network. i wanted to hack the wifi network (obv with his permission). its secured with wep and i got the key after collecting 25000IVs. but it doesnot connect with that key. it says network error. then i changed the mac address with his ipad's mac address with cleven ( without loading injecting drivers and monitor mode. just the mac address) . it does connect with the wifi but cannot browse. what to do? can anyone help me?. i also know the ip of the router. how can i use the wifi network?