What if the local connection is restricted?

Today, a colleague asked, the home computer can not surf the internet, look at the local connection where there is an exclamation point, prompted local connection restrictions how to do . Because I don't know how his family's Internet access, because the family may be a community broadband, but also may be the unit of family homes with the unit network, but also may be to connect the telecommunications company's broadband network, he also said not clear, below we on this issue, do a full analysis, hope to encounter the same problem you useful.

The above image is the most common restricted effect, with a yellow exclamation point on the local connection icon

The image above is a representation of a local connection when Win7 cannot be connected to the network

1, static IP settings in the form of broadband network or office network.

This is one of the most widely used network structures in large companies, government departments, institutions, schools and large metropolitan area networks. Maybe it's a bit big, but if you know something, it can be a big help to solve the problem.

If you remember setting up a static IP address, that's the kind of network that comes with a limited local connection, usually to see if your computer is connected to a small switch (usually 4, 8, 16, 24 switches) or floor switches in the Office ( Usually in a dedicated network room or network Center), if you understand, you can look at the same switch with the other computers are normal Internet access:

If they can surf the internet, they do not have access to the Internet, usually the problem of their own IP address, you may inadvertently set the IP address can not be identified by the switch, or the IP address is changed to "Automatically get", or with someone else IP address conflict (their own set of IP online already).

This situation, usually your own IP settings are not correct, and the network is actually connected

WORKAROUND: Please select "Use the following IP address", and then enter the correct IP address, if the IP address conflict (usually prompted), please tell the network administrator to find the same IP, to change the correct address.

If you can not access the Internet, please find the upper port, and then use the upper mouth directly connected to the computer test (if not familiar with the work, it is recommended that you look for a dedicated administrator or debugging staff to solve the same below, no longer prompt), if the upper mouth is not a problem, is usually the

Workaround: Test with a normal switch (configure on a new switch if you need to configure it).

If the upper mouth is not normal, it is not a problem you can solve, feedback to the unit dedicated staff to solve.

Solution: Feedback to network managers, to find a superior network of unicom situation, step up to find a solution, if the middle line is broken, you may need to wait for repair, such as the common is the outdoor optical fiber was dug up, by the big truck because of the super high hang up, telecom company line transformation and other sudden factors, need to wait for the event is longer.

The image above is usually disconnected by the network cable being unplugged or connected to the net. You can reseat the two ends of the network cable connector (one on your own computer, one on the switch), if still so, and everyone use the network is normal, may be the network connector fault, you can find technicians to help you make a network cable connectors.

2, automatically obtain IP address.

This is common in corporate networks that use DHCP allocations or home routers.

If a larger company or organization uses DHCP to obtain the IP address automatically, the "local connection is restricted" prompt, usually the computer cannot get the correct IP address.

Workaround: View the other people in the same office or area as normal, and if they are not normal, feed back to the network administrator to see if the DHCP server is working properly. If the other person's normal access to the Internet, they can not, may be their own IP address access is inadvertently changed, please modify to "automatic acquisition."

3, followed by the telecommunications company's broadband.

Solution: Please confirm the login account and password information is correct, if the use of multiple-port router or wireless router, please login to the router management address, view the router configuration, if the configuration is normal, account and password are correct, then call the telecommunications company to solve. If the router management address can not be logged, it is likely to be a router failure, you can contact the purchase of the merchant test solution, if the telecommunications company to provide, please contact the telecommunications company's technical support to solve.