What about the modem 651 error

The broadband error 651 is mainly due to the connection between the user terminal computer and the CNC station device. In general, there are four types of situations:

1, the network cable is not connected;

2, modem fault;

3, network card failure;

4, the modem itself set.

　　User Side Section

This is generally the problem (dial-up software, network card driver, USB cat drive, computer system, ADSL cat itself, after the door line)

Solution: Please check the ADSL cat status light is normal. If normal, ask the user to check the dial-up software, the NIC driver, the USB cat driver (usually the case requires reinstallation). If not normal according to the device status lamp to judge the user is a network cable, cat or belong to the phone line problem. If the network cable problem can recommend that the user shuts down the computer and the cat will switch both ends of the network cable and then plug in 3-5 minutes to try again or change the network cable to try again. If it is a cat problem from their own to the digital exchange, one year can provide users with ADSL cat manufacturers telephone equipment manufacturers do after-sales service.

　　Netcom Responsible part

Generally this part is divided into (telephone outside, local equipment, equipment port), this time can be ADSL cat power off the phone line plug into the cat 3-5 minutes to try again or the main line does not pass through the separator plug directly into the ADSL cat on 3-5 minutes to try again, It's still not going to work. Ask the user to dial 112 to test the phone outside or request a local replacement device port.

Treatment methods

If it's Win7 first open network and Sharing Center-change adapter settings-Local Connection right-properties-configuration-Link speed-connection speed and Duplex mode -100mbps full Duplex-ok

If not normal according to the device status lamp to judge the user is a network cable, cat or belong to the phone line problem.

If the network cable problem can recommend that the user shuts down the computer and the cat will switch both ends of the network cable and then plug in 3-5 minutes to try again or change the network cable to try again.

If it is a cat problem within one year by the Netcom is responsible for home commissioning replacement, one year can provide users with ADSL cat manufacturers telephone by equipment manufacturers to do after-sales service. If the phone line problem can turn off the ADSL cat power to plug the phone line in the cat 3-5 minutes to try again or the phone line does not pass through the separator directly inserted into the ADSL cat after 3-5 minutes to try again, it's still not going to work. Ask the user to dial 112 to test the phone outside or request a local replacement device port.

You can disable the next network, then open the network and Sharing Center, click the Red Fork on the left side of the Earth, wait for a while, click to check and repair after the estimate can dial the Internet.