win7 notebook network network but the display can not connect with DNS can not go up There is an exc

The problem is solved, a system itself, win7 network card original settings are automatically selected duplex or other, I changed it to 10M full duplex;

Another problem is being on a local area network. The problem of multiple router settings is that individual users, thinking that routers and switches can tap more computers down. What if there is another router under the router?

XP thinks that the following router is the same as a switch, and the transfer signal is it, but Win7 is not so simple. He will find that there are two IPs (!) that are gateways in the LAN.

Sometimes he directly accesses the one that is really the gateway, then he can connect to the Internet normally. What if he's accessing the router below?

The following router is the default setting.,There must be no DNS setting.,The computer in the system can't find the path when you want to access the external network through the gateway.。。。 It will show "Unable to communicate with the primary DNS server" and so on, or it will be disconnected from time to time, and it will be restored from time to time.

Set the IP and DNS to be automatically obtained in the setting network, if it is not dynamic, look at the DNS of other machines in the local area network, and change the same is OK.

Summary. Hello. The reason for the exclamation mark on the win7 network connection is that the network is not good, and the solution is as follows:

1. Replug the network cable, draw a different network cable, and then restart the computer.

2. If it doesn't work after restarting, let's kill the virus first and let the antivirus software diagnose the network environment.

3. If the antivirus is not working, then use the built-in network sharing center of win7 to self-check, click the red cross.

4. Enable Windows network diagnosis to view connection problems in the web.

Win7 has an exclamation point and can't access the Internet.

Hello. The reason for the exclamation mark of the win7 network connection is that the network is not good, and the solution is as follows: 1. Replug the network cable, draw a different network cable, and then restart the computer.

2. If it doesn't work after restarting, let's kill the virus first and let the antivirus software diagnose the network environment. 3. If the antivirus is not working, then use the built-in network sharing center of win7 to self-check, click the red cross. 4. Enable Windows network diagnosis to view connection problems in the web.

I hope I can help you!! I wish you a happy life and a happy day.

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Win7 wireless network shows that it is connected but cannot be connected to the network, and there is a solution to a yellow exclamation mark.

Win7 does not have the function of automatically obtaining the IP address, you can set it yourself.

You can fix it with a 360 disconnected first aid kit.