Wenn man mit Windows7 nicht ins Internet kommt -> disable the DHCP BROADCAST

[The_Lord_of_Midnight]

Hallo,
wenn ihr mit einem Ms Windows Vista oder Windows7 Client nicht ins Internet kommt, könnte es an einem alten Router liegen.

Lösung:
Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers
http://support.microsoft.com/kb/928233

http://social.answers.microsoft.com/...e-7b9c51827a89
Windows 7 wireless connection problem

2. Disable the DHCP Broadcast Flag:
http://support.microsoft.com/default.aspx/kb/928233
Windows 7 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 7. To do this, follow these steps:
1. Click Start, type regedit in the Start Search box, and then click regedit in the Programs list.
If you are prompted for an administrator password or for confirmation, type your password, or click Continue.
2. Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Tcpip\Parameters\Interfaces\{GUID}
3. In this registry path, click the (GUID) subkey that corresponds to the network adapter that is connected to the network.
4. On the Edit menu, point to New, and then click DWORD (32-bit) Value.
5. In the New Value #1 box, type DhcpConnEnableBcastFlagToggle, and then press ENTER.
6. Right-click DhcpConnEnableBcastFlagToggle, and then click Modify.
7. In the Value data box, type 1, and then click OK.
8. Close Registry Editor.

By setting this registry key to 1, Windows 7 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.

Bin nur draufgekommen, weil in einer bestimmten IT-Hak die Schüler praktisch ALLE einen mobilen Internet-Stick kaufen müssen, denn die IT-Leute dort tappen offensichtlich völlig im Dunkeln.
Ich finde, sowas ist eine Schande, aber bitteschön.

Vielleicht konnte ich dem einen oder anderen mit diesem Tip helfen.