The computer is not connected to the Internet, and it is urgent

Haha, you're advertising?

Tell you some solutions to your computer not connecting to the Internet.

Check it out in a few steps:

The first problem of not going to the network, look at whether there is a local connection in the neighbor attribute of your computer network, if it is not the XP system, the network card should be broken, if there is, see if it is disabled, if not, and you are pppoe (that is, the kind of user name and password authentication to go online) or can not connect, you will set the IP of the network card to a network segment with the cat, ipng cat, if not, that is, the network card does not communicate, It may be that the network card is not in good contact or the network card driver file is incomplete, if it is passed, there is a reset key behind the cat, this is the reset key, find something to press it for three seconds, and reset the cat. Because you've said that cats are fine on the Internet somewhere else, if it doesn't work yet. Let the telecom people test the external line for you, which should be caused by the insufficient quality of the external line.

And they took care of it.

Second, there is no beeping sound when your computer is turned on: there are two possibilities, one is that you knocked off the jumper of the alarm horn on the motherboard when you were cleaning the dust. This simple connection is OK.

The location of the jumper is printed on the motherboard, and you just need to find it and plug it in. The second is that the alarm horn on your motherboard is broken. It may be that the line was broken during the ash cleaning.

Pick it up or change it and you're done. In fact, it doesn't matter if you don't have it, it's just an alarm horn, which doesn't affect your normal use.

What's wrong, can't it be opened?

First, make sure your router is set up correctly.

1. The problem of setting the IP address of the computer.

1) When connecting to the router to surf the Internet, you need to set the IP address on the computer to be automatically obtained (dynamic IP).

Dynamic IP address configuration of the computer.

2) If the administrator of your network requires a fixed IP address to access the Internet, please fill in the correct IP address, subnet mask, gateway and DNS server address in the local connection.

2. Check whether the network is normal.

1. First of all, open PC Manager and select the toolbox in the lower right corner.

2. Select the network repair tool.

3. Click Fix Now.

The solution is as follows:

1. First of all, determine whether a single computer cannot access the Internet or all computers in the LAN cannot access the Internet. If a single computer cannot access the Internet, in the Windows XP 2000 operating system, click Start All Programs Accessories Communication Network connection command to open the Network Connection window (you can also right-click the Internet neighbor icon and select the Properties command).

2. Then check the status of "Local Connection". If the icon of the local connection is two small computers flashing and prompting "connected", it means that the line from the switch hub to the computer is normal, the network card can basically work normally, and the inability to access the Internet is caused by improper operating system settings or software restrictions. Use the ping command to ping the remote host to see if it can be pinged, if it can be pinged, it means that the network connection is normal, and then check the firewall settings and server settings in the computer.

3. If the ping does not work, it may be a network protocol configuration problem. Check the configuration of the computer's IP address, gateway, DNS, etc.

4. If the local connection icon in the "Network Connection" window is gray, it means that the local connection (network card) is disabled, then you only need to double-click the local connection icon to re-enable it.

5. If the local connection icon in the "Network Connection" window prompts "local cable is unplugged", it means that one end of the network cable connector from the switch or hub to the user's network card is loose or there is a problem with the network cable, then check whether the network cable is in good contact, and then check the network cable if the contact is good.

Don't load too many random starters.

Don't load too many unnecessary random startup programs when you boot up. Select "Start Program Accessories System Tools System Information System Information Dialog Box", and then, select "Tools System Configuration Utility Start", you only need to tick the box before, other items can be unnecessary, and you can confirm to start again after checking.

2. Convert the system file format.

Convert the hard disk from FAT16 to FAT32.

3. Don't use backgrounds lightly.

Don't use ActiveDesktop, or the system will slow down as a result (right-click on the screen to find the display properties in the web tab and remove all the options for "Active Desktop" and "Channels").

4. Set up virtual memory.

Set the virtual memory to be 3 times the memory of the machine, for example, if there is 32M memory, set the virtual memory to 96M, and the maximum and minimum values are the same (this setting can be set by "Control Panel System Performance Virtual Memory").

5. Some optimization settings.

a. Go to the Control Panel and select "System Performance File System". Change the "Primary Purpose of Computer" tab of the hard disk tab to "Web Server", "Read-ahead Optimization.""Turn to full speed.

b. Cancel the "search for a new floppy drive every time you start" in the "Floppy Disk" tab.

c. Adjust the "Additional Cache" in the CD-ROM to the maximum, and select the CD-ROM with 4 times the speed or faster as the access mode.

6. Organize the system regularly.