(Wireless router settings, this depends on your own situation, my home is tp-link430, the external network dial-up is lenient, the operation is up to the manual, acquiesce to the fool, don't set the secret key function first, wait for your bb to be able to access the Internet before setting Not too late. Regarding the brother in the enterprise, ask the network administrator, whether the secret key is used or the mac address is bound, and do it according to the specific situation.)