Windows Vista: Masalah Network Connection

Situasi masalah yang berlaku ialah:

• PC menerima IP (DHCP)
• Tidak boleh 'PING' ke gateway dan DNS.

Antara langkah yang boleh dicuba untuk mengatasinya ialah:

A

1. Perhatikan Physical Address dalam konfigurasi IP (ipconfig). Jika address yang dipaparkan ialah 00:00:00:00:00:00, sila ubah address tersebut.
2. Address tersebut boleh diubah melalui Device Manager > Network Adapters > Properties > Advance > Network Address.
3. Masuk apa-apa MAC Address seperti 0008c71b8c02.
4. Laksanakan pengujian.

B

Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers:

To resolve this issue, disable the DHCP BROADCAST flag in Windows Vista. To do this, follow these steps:


1.       Click Start, type regedit in the Start Search box, and then click regedit in the Programs list.
2.       If you are prompted for an administrator password or for confirmation, type your password, or click Continue.
3.       Locate and then click the following registry subkey:
4.       HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\ {GUID}
5.      In this registry path, click the (GUID) subkey that corresponds to the network adapter that is connected to the network.
6.       On the Edit menu, point to New, and then click DWORD (32-bit) Value.
7.       In the New Value #1 box, type DhcpConnEnableBcastFlagToggle, and then press ENTER.
8.       Right-click DhcpConnEnableBcastFlagToggle, and then click Modify.
9.       In the Value data box, type 1, and then click OK.
10.   Close Registry Editor.

By setting this registry key to 1, Windows Vista will first try to obtain an IP address by using the BROADCAST flag in DHCP Discover packets. If that fails, it will try to obtain an IP address without using the BROADCAST flag in DHCP Discover packets.