Analysis and solution of 7 kinds of wireless network faults

Imagine a situation where you buy a laptop that supports a wireless network and sits in an airport, hotel or café that supports wireless broadband and allows your computer to surf the Internet.

Your computer shows on the screen that it does find a wireless broadband connection. However, although detected, in fact, it is not connected to the network through it.

This kind of thing is not uncommon when using wireless networks. In fact, to connect a laptop to a wireless network, the middle program is a little more complicated than you might think. To access the Internet, the middle must go through a number of twists and turns of software and settings, which makes the wireless notebook should provide real-time, barrier-free connection greatly discounted.

What problems may arise? Let's take a look at them:

Question 1

You forgot to open the browser. Ideally, the wireless broadband connection works like this: when you open your laptop, a dialog box or a toolbar icon (in Windows) displays the information to find the wireless broadband connection. You press "Connect", then you can surf the Internet.

In fact, in many venues, libraries, hotel halls and schools, no online network is indeed set. How beautiful Life is.

But some of the wireless broadband connections that need to be paid for--those that can be paid daily or monthly--don't just open emails or chat programs to get online directly. Instead, you must first open your browser, such as Internet Explorer, Safari, or Firefox (some free online web will require you to open the browser first). Even if you are just checking your e-mail, open the browser first. If you do not know this, you will encounter a lot of no online network can not be used.

Once you've opened the browser, you'll see the Wireless Broadband Connection page. For example, in the United States Starbucks, perhaps many airports, there will be a T-mobile Web page, and in many hotels or other airports, there will be Wayport Web pages. Here you will enter your credit card number or login to your existing account.

It is noteworthy that these wireless broadband connection companies often have roaming agreements. For example, if you have At&t or BT's wireless network account, you can connect by selecting your company on the roaming menu provided by T-mobile.

So you can surf the Internet using browsers, email programs, chat software and other networking features.

Question 2

You are not connected to the Web page. To connect to no online network, you must connect to a specific Web page. However, some people set the browser to open a blank page at the beginning rather than starting a page. This way the laptop will not be able to connect to the network. If your browser starts with a blank page, try connecting to a Web page--Any web page--to get the computer connected to the Internet. Pages with no online web will appear, not the pages you request.

Question 3

No online network is available to the general public. Sometimes your laptop can "see" and connect to a wireless base station, but you can't see the login page or send the message. This situation represents your access to an internal use rather than the public use of the network. The person who set up the wireless base station deliberately shuts down a feature called DNS, which is a service that allows external users to connect to the network.

It is also possible that you are encountering a wireless network that is not connected to the Internet. It may just be a network of interconnected computers, for example, perhaps just for playing interconnected games, or for meeting attendees to subpoena each other at meetings.

If you have computer technology, here's a quick way to identify the problem: Look at the IP address of your laptop. If you use an Apple Computer, open a program called "Network Performance" under your "performance" information clip. In the case of Windows system, select "Execute" to enter CMD in the Start menu, and then enter Ipconfig/all in the command column. If you are in a closed network, you will see that the IP position is 169.254--for example 169.254.1.5

"It's like a ' No entry ' sign, you have to find another way to surf the internet," says Brian J Epson, a wireless technology editor and co-author of "Linux Unwired". ”

Question 4

You need a password. Many of these days, free or commercially available, do not allow you to go online without a password. (You'll find a window to enter the password on the screen)

Sometimes you can know the password if you ask. Sometimes you have to spend money, for example, in a hotel to pay the desk to get the password. Sometimes some places use passwords to block passers-by like you from using their internal networks. Naturally, many web designers even hide the signal, so your computer can't even find the base station.

Question 5

The base station is broken. If your laptop sees a network without an online connection, it could be a setup error in the base station itself. If you can find someone responsible--such as a hotel desk--trying to convince him to restart the wireless network base station, it might solve the problem. In some cases, there will be a free phone tag on the base table, and you can call the person responsible for the wireless network. The guy who picks up the phone in a distant office may know how to solve your problem.

Question 6

A question of conscience. Let's say your laptop is very happy to report that you have found a "default" or "LinkSys" without online network (this is a typical default name for a newly purchased wireless network device, unless you change it or not)

In general coffee shops, the name of a coffee shop is often used without online connections. "Ask the clerk at the counter," said J Epson, "If they look at you with a strange look, there is no online network probably not there, not what they offer." ”

This is often because some people have bad luck and their wireless network signals go through the walls--they may not, or may not, change the name of their online network. The only problem with these networks is the moral question: Should you borrow other people's stupidity to enjoy the free Internet connection? (☆ Introduction to Programming Network ☆)

(If you are deliberately set up such a network without the convenience of passers-by, in order to avoid other people's confusion, take him a name like "XXX free internet" and so on)

Question 7

Let's say you're in Boston, USA. Your laptop has found a wireless network called South Station, which means you must be in the terminal network at South Station station in Boston. Yes, you can surf the Internet, but that's not the vast Internet you're used to. In fact he is a small web site, with only a few pages about South Station's Web page, its history and features. Because what you're going into is an e-Community experiment site, sponsored by Michael Oh, a wireless network company investor in the ground.

This doesn't mean you can't get into the actual internet. You can also choose to connect to the commercial wireless network provided by South Station to the Internet.