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Старый 12.05.2009, 17:39   #1
Еретик
Гость
 
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По умолчанию Ошибка 720 и с чем её едят…

Для всех у кого возникает такая ошибка при подключении к сети интернет!

Статья с сайта Мелкомяхких, как это победить… без перевода…

SYMPTOMS

When you try to use a dial-up connection to connect to your Internet Service Provider (ISP), you may receive the following error message during the “Registering your computer on the network” portion of the connection agreement:

Error 720 - the connection attempt failed because your computer and the remote computer could not agree on PPP control protocol.

Additionally, when you view the devices in Device Manager, you may notice a yellow exclamation mark (!) over the icon for the WAN Miniport IP (#2) device.
CAUSE

This issue may occur if the TCP/IP protocol has become unbound from the dial-up adapter, or if a conflict is created when a second WAN Miniport IP device driver loads.
RESOLUTION

To resolve this issue, uninstall the TCP/IP protocol, remove the second WAN Miniport IP device, and then reinstall the TCP/IP protocol. To do so, follow these steps:1. Uninstall the TCP/IP protocol. To do so:
a. In Control Panel, double-click Network and Dial-up Connections, right-click Local Area Connection, and then click Properties.
b. Under Components checked are used by this connection, click Internet Protocol (TCP/IP), and then click Uninstall.
c. Follow the on-screen instructions to uninstall TCP/IP.
d. Restart the computer when prompted, but click No if you are prompted to allow Windows to enable a protocol.

2. Right-click My Computer, and then click Properties.
3. Click the Hardware tab, and then click Device Manager.
4. On the View menu, click Show hidden devices.
5. Under Network adapters, there should be no WAN Miniport IP devices. If a WAN Miniport IP device is listed, continue to the following step. If no WAN Miniport IP device is listed, go directly to step 16.
6. Click Start, click Run, type regedit in the Open box, and then click OK.


Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 (http://support.microsoft.com/kb/322756/) How to back up and restore the registry in Windows
7. Locate the following registry subkey:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}
8. On the Registry menu, click Export Registry File, type backup-key in the File name box, and then click Save.


Note You can restore the changes that you make to this registry key. To do so, double-click the backup-key.reg file that you saved.
9. Click each of the registry subkeys under this key, and then view the Data column of the DriverDesc value to determine which of the subkeys corresponds to WAN Miniport (IP). For example, the 0005 subkey.
10. Right-click the subkey whose DriverDesc value data is WAN Miniport (IP) (for example, right-click 0005), and then click Delete. Click Yes to confirm that you want to delete the key.
11. Quit Registry Editor.
12. Right-click My Computer, and then click Properties.
13. Click the Hardware tab, and then click Device Manager.
14. On the View menu, click Show hidden devices.
15. Under Network adapters, right-click WAN Miniport (IP) and then click Uninstall. Click OK to confirm that you want to remove this device.
16. Reinstall the TCP/IP protocol. To do so:
a. In Control Panel, double-click Network and Dial-up Connections, right-click Local Area Connection, and then click Properties.
b. Click Install.
c. In the Select Network Component Type dialog box, click Protocol, and then click Add.
d. Under Network Protocol, click Internet Protocol (TCP/IP), and then click OK.
e. When the protocol is installed, click Close.

17. Reset the modem by turning the power off and then on, or for an internal modem, restart the computer.
18. Test your Internet connectivity.


и чучуть из найденого…

http://forums.lenovo.com/lnv/board/m...&thread.id=398

Step 2: Reinstall the WAN Miniports

1. Find netrasa.inf in c:\windows\inf

2. Make a copy of the file and name it netrasa.inf.save

3. Open the orignal copy of netrasa.inf and place a semicolon

in front of the line that starts “Excludefromselect=\” and

and continue with all follwing lines and then end with

“MS_NdisWanNbfIn,MS_NdisWanNbfOut” under the [ControlFlags]

section. (all lines between)

Step 3:

1. Start a Add new hardware session (from Control Panel) and choose

that the hardware is already installed. Choose to “Add New Hardware“

and then select “Network Adapters” followed by “Microsoft” and then

both the PPTP and the IP Wan miniport one at a time.

(NO need to reboot between these steps)

2. After you finish both then reboot.

3. Select Start -> Run and type: netsh int ip reset c:\resetlog.txt

(For details, see http://support.microsoft.com/kb/299357)

4. Reboot and try your connection.

5. Delete the modified netrasa.inf and rename the original (which was saved as netrasa.inf.save) back to netrasa.inf

Ниже на одном из форумов коммент чела который пытался это победить))

degar
#1

хотя в том ситуации, когда я это пытался полечить, сие действия не помогли…
так как компутер был пустой, то после 2-х часов ковыряний, была переставлена операционка…


Вот вам все инфа для размышления))
От себя могу еще добавить что скачав вот эту утилу можно попробовать решить эту проблему самостоятельно!
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