This article mainly introduces the wireless network settings in detail. How can we solve the problem of unidentified networks? I believe that reading this article will help you.
1. method 1
Cancel the TPC/IPv6 protocol in "Local Connection" and "wireless network connection. Disable the wireless network and then enable it. Check whether the problem is solved?
If not.
2. method 2.
Open the Registry Editor, find the DhcpConnForceBroadcastFlag key under HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ Tcpip \ Parameters \ Interfaces \ {GUID}, and change its value from 1 to 0. disconnect the wireless connection and connect again!
We recommend that you cancel the TPC/IPv6 protocol in "Local Connection" and "wireless network connection.
Microsoft's fault description:
Symptom
Consider the following:
• Connect a Windows Vista-based computer to the network.
• Configure routers or other devices configured as Dynamic Host Configuration protocols (DHCP) servers on the network.
• The vro or other devices do not support the BROADCAST flag.
In this case, Windows Vista cannot obtain the IP address.
Cause
This problem is caused by design differences between Windows Vista and Microsoft Windows XP Service Pack 2 (SP2. Specifically, in Windows XP SP2, the BROADCAST flag in the DHCP exploration packet is set to 0 disabled ). In Windows Vista, the BROADCAST flag in the DHCP exploration packet is not disabled. Therefore, some routers or non-Microsoft DHCP servers cannot process DHCP exploration packets.
Solution
Warning if the registry is incorrectly modified using the Registry Editor or other methods, serious problems may occur. These problems may need to be solved by re-installing the operating system. Microsoft cannot solve these problems. You are at your own risk to modify the registry. To solve this problem, 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 click regedit in the program list ".
If the system prompts you to enter or confirm the administrator password, enter the password or click "continue ".
2. Locate and click the following registry subitem: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ Tcpip \ Parameters \ Interfaces \ {GUID}
In this registry path, click the "(GUID)" subitem corresponding to the network adapter that is connected to the network.
3. On the "edit" menu, point to "new" and click "DWORD (32-bit) value ".
4. In the new value #1 box, type DhcpConnEnableBcastFlagToggle, and then press Enter.
5. Right-click DhcpConnEnableBcastFlagToggle and click Modify ".
6. In the value data box, type 1 and click OK ".
7. Disable Registry Editor.