Laptop, unable to connect to the Internet after being remote, dial first prompt 651, and then dial p

Is it to use land travel, telecommunications are restricted, I often encounter.

The occurrence of 651 in computer dialing is generally caused by line failure, cat pants or network card problems.

1. Check whether the line and cat are good.

Check the status of the broadband cat: adsl cd dsl link If these lights are always on, it means that the outer line is normal, if it flashes or does not light up, restart the cat, and it still cannot be restored after 20 seconds, contact the network company to repair the external line and replace the cat.

2. Uninstall and reinstall the NIC driver.

Computer-Network-"Network & Sharing Center-Dual-Trapped-Simple-Local Connection-Properties-Configuration-Driver-Uninstall-OK. Reinstall the NIC driver:

1) U disk on another computer, from the driver home, Zhongguancun**, Huajun and other **** driver software, ** driver software should pay attention to: one is suitable for your network card to use the driver, the second is suitable for your current system to use, the third is to see the time when the driver software is announced, the latest may not be suitable for use, can be more**several, pick to make.

If it can't be installed automatically, decompress it and set it by, and make a note of the specific path of the software in the disk, such as d: Right-click "My Computer" -- Properties "--Hardware" -- Device Manager, "Network Adapter" right-click on the network card, select "Update Driver", open the "Hardware Update Wizard", remove the check box before "Search for removable **", check "Install from a list or a specified location" -- Next", check "Include this location in the search", Fill in the path d: ....Next", the system will automatically search for and install the NIC driver in the location you specified.

3. Set the NIC transfer rate.

Computer - Network - Network & Sharing Center - Double-click Local Connections - Properties - Configuration - Advanced - Select "Link Speed Duplex Mode" in the "Properties" bar, change "Auto Mode" to "100Mbps Full Duplex" in the "Value" bar - OK.

4. Set the local connection attribute and set a fixed number of address for the IP.

Computer - Network - "Network and Sharing Center" - Double click Local Connection - Properties - Set Network - Tick "IT Protocol Version 4" - Properties - Set IP Address and DNS Server Address - OK.

5. Rebuild broadband connection.

1) Click "Network" in the navigation pane in the computer window - click "Network Sharing Center" in the toolbar to open the "View Basic Network Information and Set Connection window".

2) "Change Network Settings" and select "Set up a new connection or network" to open the "Set Connection or Network" window.

3) In "Choose a connection option", select "Connect to IT, set up wireless, broadband or dial-up connection to IT" - next "Step".

4) "How do you want to connect", select "Broadband PPPoe", and enter the "Type in the information provided by your IT Service Provider (ISO)" window.

Username: Password:

Connection Name: Allow others to use this connection:

After setting, hit "Connect".

5) Show connecting to, connection successful, closed.

Are you sure your cat is good?

If you are sure that the cat is good, then make sure that your broadband account number and password are correct. Although the 651 error of win7 is said to be a modem error, in my actual use case, win7 often reports the same error as 651 and 691.

If the account password is also correct, and your system is fine, then you are eighty percent of the telecom network, dial 10000, manual service, and ask to unbind the network card MAC; There is also a twenty percent possibility that you are a radio and television network, and the radio and television network will go crazy, and you often can't dial the number with win7.

You don't need to dial up a router to use it.

If the XP device is under the router, it can access the Internet normally. You can eliminate network problems, replace the win7 machine router interface, check the crystal head, the poor quality of the crystal head will also cause the network problem to be unable to identify.

The line is fine, and then use the XP machine to check the router configuration to see if the client MAC is bound to see if the router supports DHCP.

If DHCP is not supported or the function is not enabled, manually configure the IPv4 network connection of the win7 machine, and fill in the IP, gateway, subnet mask and DNS server.

If all of the above is a problem, then determine whether it is a network card or system problem, and start with these two aspects......