What if the laptop doesn't go online?

What's wrong with a laptop that doesn't go online?

Now the network has become a part of everyone's daily life, no network can not be normal life.

But sometimes we also often encounter the computer can not surf the situation, this is how to go about it?

Next, let's look at how to step through the troubleshooting.

Reasons for not being able to surf through routers

Can not surf the internet, first of all to judge, you are through what to the Internet, is a computer can not on, or all computers (including mobile phone, if there is a mobile phone) can not be on it? If it is a single Taiwan can not access the Internet, generally speaking, a single device setup problem. The discussion here is that there is no internet access.

Generally speaking, the family now more than a computer, plus a few mobile phones, so it is generally used by wireless routers. But it doesn't rule out that some people use the dial number.

Here we first analyze the Internet through the wireless router.

The 1th step is to determine the physical link state.

Look at the computer network connection is connected, or directly to see the network card lights, to see the router network interface of the light, whether it is bright. If the light is not on, that is the physical link does not pass.

In general, look at whether two of the network cable is loose, including plugged into the computer and inserted in the router that head. The network physical link is normal, the green light is bright. If the light is not lit, you can change the network cable or crystal head to solve.

Step 2nd to see if it is a router setup issue.

If the cable lights are on, we are going to test the communication with the router next. Here are a few small steps to explain:

1, first, we need to know the IP address of the router and the IP address of the computer

2, there is a situation, when the intranet does not have a DHCP server (usually the router is set to open), and the computer is automatically get IP, when unable to obtain the IP address is, there will be an exclamation point, the hint has restrictions, When looking at IP, it is possible to start with 169.x.x.x, or directly 0.0.0.0, this is not connected, this situation in life than more see. Special to explain. At this point, we must first find the IP address of the router, and then manually set the computer's IP as the router of the same network segment of any one.

For example: Router's IP is 192.168.1.1, then manually set the computer's IP as: 192.168.1.X, where X is between 2-254 of any number. Subnet mask is 255.255.255.0, Gateway is router IP address: 192.168.1.1,dns to see the region, the best is to ask operators, Guangdong Telecom words is 202.96.128.86

3, and then ping the command to test its connectivity.

Operations: Start-run-enter CMD carriage return-Enter the IP of the ping router to return (the router's bottom, generally write the IP address and username password, if your router has not been replaced, you can refer to). See if there is any return information, if any, it can be connected.

If this is not the case, it is not, of course, there are many kinds of conditions, in general, is the router downtime.

Treatment: First disconnect the power of the router for one minute and then power on. And then see if you can surf the Internet.

4, landing router, if passed the test, the router is able to connect, we can first log into the router to see the state of operation! The router is generally not a successful dialing number.

Action: Open the browser, enter the IP address of the router in the Address bar, and return. Will eject the login box, enter username and password, click OK to log in.

5, check the status of the router, whether connected, sometimes because the network cable connected to the modem is not plugged into the router's WAN. If this is the case, you can usually solve the network cable!

6, if the network cable is not connected to the wrong, but still can not dial the number of successful, then to reset the dial it.

First click on the wizard, next, select the PPPoE method, enter the username password (do not write wrong oh, note the case), has been determined, will be prompted to restart. Reboot after the completion of the router to see the state, the number of successful dialing.

The 3rd step, the broadband dial to test the connection is normal.

If the previous two steps are tested no problem, but the router or the number is not successful, then we can only use the most original and simplest way to test, that is I just put on the side of the broadband dialing method.

Operation: The modem comes out of the network cable directly connected to the computer screen, the network card lantern light, and then start dialing number.

There are three common results of the dial number,

1, the success of the dial, of course, is the best, you can access the Internet (that may be the wrong password to set up the router, or the router has problems, if necessary, you can restore the router's default settings to try).

2, error, Tip 691 error, that is the account and password error. Do you think you stopped paying the fee, or did you remember the wrong password?

3, error, Tip 678 error, this is the most occurrence of the situation, can not connect to the remote computer, many for the modem downtime.

The 4th step, check the modem and the line is normal.

Note: Generally speaking, the router and mode should be placed in the ventilated place, there is no way, but also to take some cooling aluminum plate to support the equipment to heat a little bit easily.

The best way to check if the modem is normal is to replace the method. Because the modem can be directly replaced without setting. But in the actual environment, very few people spare a number of modem, so we should first restart the modem, see mode in the lights, whether normal.

Modem various kinds of more, I usually see more to describe it.

See more is this Huawei, there are five lights (generally are five lights), from left to right are: power lights, ADSL signal, ADSL data lights, network card signal lights and network card data. Data lights are flash when there is data to send and receive, but other lights must be lit, that is, under normal circumstances, 1th, 2, 4 lights are long bright, to note that the 2nd lamp, is not a power on the long bright, this lamp is on behalf of the operator's signal state, usually after the synchronization is only the bright, in sync, this lamp is a flash flash.

So, after we restart mode, we need to look at the lamp to see if it synchronizes properly. If you can be normal, you can test whether the Internet. If the synchronization has not been long bright, that is the operator to the signal is not normal.

The 5th step is to check whether the operator's line is interrupted.

After the last step, we should also check the line, generally speaking, everyone has a telephone in the house bar.

Inserted in the modem telephone crystal head inserted in the telephone, lift the handset, listen to whether there is a current sound, if there is, prove the line is not broken, but ADSL signal is not normal. On the contrary that is the line interruption, hurriedly take the mobile phone to the operator, the analysis of your situation with them, it should soon be someone to deal with.

        Note : more Wonderful tutorials please focus on the Triple computer Tutorials section, triple Computer office group: 189034526 Welcome to join