3 types of circuit-free by encryption method introduced

The way of wireless encryption technique

If a computer cannot re-establish a session, the items to check are as follows: Verify that the wireless router and wireless network card are encrypted in a consistent way, confirm that the password phrase used to generate the WEP key (or WPA key) is the same in the wireless router and wireless network card, and that the passphrase is case-sensitive, such as p and p are different, So in the setting of the time to carefully input, pay attention to the difference between uppercase and lowercase letters.

If not, then disable encryption on both the wireless router and the wireless network card to verify that the connection can be established without encryption enabled.

　Second, wireless router encryption enable WEP

First, let's take a look at how to use this WEP key to set up a wireless router. When configuring this section, it is best to use wired to connect to the wireless router, because if you lose the wireless key, you will not be able to use the correct key to connect to the wireless router.

Use your Web browser to access the wireless router and click on the Wireless Parameter tab, first turn on the security settings, select WEP on a line labeled security type, select 16 in the key format, enter the key, and click Save.

Write down this key, and after you click Save Settings, any computer connected to the wireless router will lose its connection. You have modified the way they communicate with the wireless router, but you have not yet told them what security keys to use to access the wireless router.

　　Third, wireless router encryption enable WPA

Enabling WPA encryption is similar to enabling WEP encryption, however, before you enable WPA encryption, you must first decide how long the encryption key is valid, and if you set it to 1800 seconds and 30 minutes, then the wireless router and wireless card will generate a new key after it has been in use for 30 minutes. If a hacker cracked the key within 30 minutes, the key would be valuable for less than 30 minutes, because after 30 minutes it would have become another new key, and the hacker would have to start cracking again.

In the wireless parameters, choose to open the security settings, select Wpa-psk, select the Security Options WPA-PSK, select the encryption method, enter the PSK password. Where the WPA shared key is labeled, enter a pre-shared key, and for how long it will be updated when the group key is marked for update. We select 1800 seconds in this example. Click Save Settings.

Note: Key update time How long should we set it? Without a good answer, if you set it too short, for example, 1-2 minutes, security is improved, but for some network adapters, this may cause some connectivity problems. We recommend that according to the manufacturer's default value. For WPA encryption, we also need to tell the super password to each wireless card so they know how to decode the call to the wireless router. Set up each machine in the wireless home network in turn, and remember to check to see if you have connected to the wireless router.