The computer wireless network card can't access the Internet. What happened?

2. What network do you use?

3. Is it enough to buy customs duties?

You'd better have a look below, hoping to help you.

1. Choose the wireless Internet access method that suits you according to the picture below.

2. Wide-area wireless networks can access the Internet anywhere, while local wireless networks are limited to specific "hot spots". Please choose according to actual needs.

a

If you want to let the "old notebook" of non-Centrino model surf the Internet, you can solve it by adding an external wireless network card. It is recommended that you use pcmcia. Compared with usb, PCMCIA has the biggest advantages of low calorific value and stable operation, and is more suitable for old notebook computers without usb port. At present, ieee802. 1 1g is the general trend and backward compatible with ieee802. 1 1b, so when you buy a network card, you can point out that you need this standard wireless network card.

The wireless network card is a signal transceiver, which provides the possibility of wireless Internet access for your notebook. With it, your notebook, like Centrino, can surf the Internet directly in the "hot spot" area with local wireless network. But if you want to surf the Internet wirelessly in various occasions, please continue to refer to the following contents and equip yourself with a wireless network card.

b

The characteristic of wide-area wireless network is that you can surf the Internet wirelessly wherever you go. First of all, you need to buy a gprs network card, which is relatively cheap. Some newly bought network cards include internet access fees for half a year or several months, so be sure to ask clearly. There are many options for accessing the Internet through gprs. I recommend a monthly business package of 200 yuan, with unlimited traffic and roaming.

Advantages: gprs has a strong competitive advantage in price and is cheaper than CDMA1X.

Disadvantages: slower than CDMA1x. Network stability is general, sometimes intermittent.

c

The low-grade cdma 1x network card is generally below 500 yuan, and the high-grade network card is around 1,000 yuan, so you can choose according to your own needs. Some newly bought network cards include internet access fees for half a year or several months, so be sure to ask clearly.

For example, the broadband wishful package recommended by Telecom includes the following contents: ZTE wireless network card, Internet access fee in 600 yuan, including 900 hours of local Internet access, and remote Internet access 10 hour/month, valid for 7 months, that is, buy and send. If you already have an Internet card, you can choose 298 yuan for unlimited monthly subscription, and there is no limit to local and remote roaming. Telecom also provides a variety of packages, 2400 yuan a year, giving away 3600 yuan and 4800 yuan of network cards. There are different price schemes for the length of surfing the Internet and roaming. For details, please call 100 10.

Advantages: cdma 1x has fast Internet access and stable network, which is welcomed by many users.

Disadvantages: Although there are various tariff packages, overall, the tariff is still relatively expensive.

d

For users who don't need to surf the Internet frequently, occasionally use wireless Internet to pass the time in airports, cafes and other places, and you can choose wlan to surf the Internet. These places are what we usually call "hot spots" and have deployed wireless local area networks. When you reach the "hot spot" area, your computer will automatically ask you if you need to connect. In "hot spots" areas, some wireless Internet access is charged, while others are free. Charging places include airports, hotels above 4 stars, individual restaurants and cafes.

Taking the Capital Airport as an example, China Mobile has provided wlan access along the E-line, which can provide the speed as high as11m. The method used is simple. Open ie browser first, and the login interface of line E will automatically appear. According to the prompt on the interface, you can apply for login password by SMS or 1860. The account number is your mobile phone number, the password message is sent to your mobile phone, and the internet access fee is deducted from your mobile phone fee. Wlan charges according to the actual online time, the standard is 0.20 yuan/minute, 12 yuan/hour, and the network speed is average.

e

It is also a "hot spot". Wireless Internet access in companies, schools, bars, cafes and other commercial places is free. When you arrive at the other company for a business visit, you can use the wireless network of the other company to handle official business during the waiting interval. In these places, the internet speed depends on the signal strength, so you can walk around and look for seats with better signal.

Tips for saving money: Being good at finding free "hot spots" is the key to saving money. For example, you have to wait an hour to meet a teacher in Tsinghua. At this time, if you sit somewhere on the Tsinghua University campus and surf the Internet, the campus network is free for you. But if you choose to wait in the lobby of Ziguang International Exchange Center next to the East Gate of Tsinghua, you will have to pay the fee. This is because the center belongs to a 4-star hotel, and wireless Internet access needs to be paid. You see, just across a wall, there are two completely different choices!