What s wrong with the broadband connection always prompting 815?

When a broadband dial-up connection is displayed, the error 678 651 815 is displayed, usually on the entire broadband line, and one of the lines or equipment is interrupted, resulting in the entire broadband connection. The principle is that after the dial-up information of the computer is sent, the feedback information from the server is not received for a long time, and the system judges that the dial-up is interrupted. Troubleshooting Steps:

1. Check whether your broadband is in arrears: First of all, determine how long your broadband has not been paid and whether it may be in arrears. If you can't be sure, you can use the broadband-related landline or mobile phone to dial 10001 or use the broadband password to log in to the telecom online business hall to inquire about the specific account payment information.

2. Check the connection between the computer and the router: 1) Before judging according to different lines, please check whether the computer is connected to the router and check the connection settings between the router and the computer.

2) If you don't connect to the router or can't connect to the network with the router, you can directly connect to a single computer through the cat dial-up connection. 3. Broadband processing according to resources: ADSL resources:

1) Confirm whether the synchronization lamp such as cat "adsl" or "link" is constant (generally the second light starts from the power lamp), if it is not constant, it means that the signal is abnormal, it is recommended to replug the ** cable and restart the cat (judgment method of different models of cat faults: ZTE cat, Huawei cat, tp-link cat). 2) Confirm that the cat is connected to the network cable of the computer, and whether the local connection of the computer shows "Local connection is unplugged".

3) If you still can't connect after confirming that the signal is normal, it is recommended to restart the modem and the computer. LAN Resources: 1) Confirm whether the local connection of the user's computer shows "Local connection is unplugged", if so, please check the network cable that the cat connects to the computer.

2) If you still can't connect after confirming that the signal is normal, it is recommended to restart the computer. FTTH resources: 1) Check whether the "LOS" or "optical signal" on the modem is red light, which indicates a fiber signal problem, and it is recommended to plug and unplug the optical fiber interface and restart the optical modem (how to determine various faults of the optical modem).

2) Check whether the PON or Network E G on the modem is constant, if it is not constant, the signal is unstable, and it is recommended to restart the modem. 3) Check whether the local connection of the user's computer shows "Local connection is unplugged", if so, please check the network cable connected to the computer by the modem. 4) If you still can't connect after confirming that the signal is normal, it is recommended to restart the modem and the computer.

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If the computer is directly connected to the switch or modem with a network cable, the network settings cannot be obtained even if the IP and DNS are automatically obtained, because there is no DHCP service device, and the IP and DNS settings can only be obtained when the device is connected to the router with DHCP service enabled. You can also help Tencent computer manager, housekeeper - computer clinic - can't get on the network - repair immediately.

Do not rule out the router reason, turn off the router and wait for about 10 minutes before trying (or resetting).

If you are connected to a router, check the network connection to the router, whether the router's DHCP service is turned on, and whether the router device is faulty. "

Reasons for this: The 813 error is generally caused by the creation of multiple dialing software.

Solution:1Remove all broadband connections;

2.If the method in the first step cannot solve the problem, please open the Control Panel --- Device Manager, and right-click the option under the network adapter to disable;

3.After restarting, right-click the option under Network Adapter to enable it;

4.Just set up a new broadband connection.

Broadband connection in basic electronic and electronic communication is to describe the continuation or electronic line contains or can handle a wide range of frequencies at the same time, it is a relative ruler Qingxiao description of the way, the larger the frequency range, that is, the higher the bandwidth, the transmission of data is relatively increased. The upper limit of the dial-up Internet speed is 56kbps, and the lower than 56kbps is called "narrowband", and the above is called "broadband". For home users, it means that the transmission rate exceeds 1m, which can meet the needs of a large amount of information transmission such as voice and image.

Including fiber, XDSL (ADSL, HDSL), ISDN, etc.

The traditional ** wire system uses the low-frequency part of the copper wire (only the frequency band below 4kHz). ADSL uses DMT (Discrete Multi-Audio) technology to divide the original Script ** line OKHZ to the frequency band into 256 sub-frequency bands with a frequency width. Among them, the frequency band below 4kHz is used to transmit POTS (traditional ** service), the frequency band from 20kHz to 138kHz is used to transmit uplink signals, and the frequency band to 138kHz is used to transmit downlink signals.

DMT technology can adjust the number of bits modulated on each channel according to the situation of the line, so as to make full use of the line. The larger the signal-to-noise ratio of a sub-channel, the greater the number of bits modulated on that channel, and if a sub-channel has a poor signal-to-noise ratio, it is discarded. ADSL can achieve a data transmission rate of 640Kbps uplink and 8Mbps downlink.

For the original ** signal, the original frequency band is still used, while the ADSL-based service uses the frequency band other than voice. The original ** business will not be affected in any way.

The 813 error is generally caused by the creation of two dialing software.

It is recommended to check whether two broadband connections have been created, if there are two broadband connections, please delete one of the dial-up software and restart the computer, and then re-dial the connection test, if the state call is still unable to access the Internet, please call 10000 to reflect.