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Do I need an account password to connect my laptop to wifi xjtu_lib of Qian Xuesen Library of Xi Jiaotong University?
If you don't know the password, you can consult the front desk customer service staff. In addition, if you don't know the password, there are several solutions.

The initial password of 1.WiFi hotspot is written on the router manual;

2. The name of the WiFi hotspot can be set by the user himself, and the general password should be known to the person who sets the WiFi hotspot;

3. If you want to know the password on the wireless hotspot router, any other cracking method is illegal except asking the setter;

4. If you want to surf the Internet, you don't need to know the wireless hotspot password. You can surf the Internet by downloading some surfing software, but surfing the Internet is not for cracking passwords. Surfing software only obtains the wifi password shared by online users, and then automatically uses wifi to surf the Internet. If the password setting of wifi hotspot is complicated and no one shares it, then you can't surf the Internet. The password of the wifi hotspot can only be asked by the owner of the wifi hotspot.