Device not available or device not connected: Frequently asked questions about wireless internet

Q: I now use wireless internet card Network, but in the network for a period of time after the old automatic network, and then click on the connection to show "equipment is not available or equipment is not connected" can only pull it down and then press on the good, is very distressed ah!

For:

Also do not know if the cable connection is stable, so start with the route first

1, first check the line quality, including telephone lines and power lines, to see if there is no contact with the phenomenon! Wire quality should also try to choose the quality better.

2, the voltage is stable, whether the vicinity of the start, the load is relatively large, relatively strong radiation power equipment.

3, the power adapter quality and voltage to meet the requirements, conditions for a look.

4, the occurrence of disconnection is easy to answer the phone when you can determine the quality of the telephone distributor and wiring mode is not a problem, you can change to see.

I've met all of the above.

This column more highlights: http://www.bianceng.cn/Network/wxwl/

5, the above no problem is only suspected routing quality problems, this can not be repaired, you may find a route to see if there is any improvement.

The following is the problem of signal passing and NIC

6, wireless transmission signal attenuation is too large or unstable, such as far away, many obstacles.

7, electromagnetic interference is serious, there are electromagnetic interference, such as large-scale substation, mobile communication base station, electrical welding operations.

8, wireless network card quality problems. Try another one.

Add: If the NIC driver can not find a special version of the public version of the problem may appear, preferably with a random belt of the special version of the drive, no more to the Internet to find a driving test is not to be. Also do not know whether the wireless network card is directly installed in the machine or external USB wireless network card, if it is an external USB wireless network connection Some pay attention, it is best not to use an extension cord, directly check in the back of the socket, if you have to use an extension cord, extension of the quality is also to