I suddenly can t get on the Internet today, and the dial prompts 678, what should I do?

There are three main reasons for error 678: the first is that the optical modem onu ont or other equipment may be faulty. The second point is that the hostname or IP address of the server is wrong.

The third point is that the ** line is not plugged in well on the optical modem onu ont slot. The solution to the optical fiber error **678 is as follows: 1. Log in to the WeChat customer service of Telecom (hereinafter referred to as WeChat customer service) to check the broadband status (whether it is down, large-scale fault, change the password in transit), and can eliminate the fault according to the troubleshooting guidelines of WeChat customer service; 2. Check the status of the modem indicator

Check whether the indicators of the modem are normal, the power lamp and network light need to be on, and the light signal light needs to be off, which are all normal phenomena. The specific method is divided into the following points: a power light does not light up or flashes, check whether the power light is normal and always on?

If the power lamp is not on, the modem may not be powered on normally, it is recommended to reseat the power supply to see if the contact is bad, or replace it with another optical modem to see if the optical modem is faulty. b. The optical signal is red or flashing, it may be that the optical fiber is disconnected or the optical connector is faulty, and you can directly place a fault order on WeChat. The light flashes or goes off on the network or the network cannot transmit data normally, or the optical signal power is not enough.

You can place a trouble ticket directly on WeChat. 3. In the normal situation of each indicator light, connect the router inspection method, divided into two steps: A turn off the routing and modem, and then turn on the modem first, and then turn on the router after the indicators are all on normally, wait for 2-3 minutes before trying to surf the Internet.

bStand-alone dial-up Internet test: 1) Unplug the router; 2) Reconnect the network cable originally connected to the router to the network card of the computer; 3) Install the dial-up software on the computer, enter the broadband and password, and then dial in to log in. If stand-alone dial-up can be used normally, it is a routing failure, and it is recommended to find a routing provider for maintenance; If you cannot access the Internet by dialing, please pay attention to whether there is a 3-digit error** on your computer, log in with your mobile phone and search for error** to find the relevant instructions.

4. Stand-alone dial-up can access the Internet, but the router is faulty or not set up, you can replace the router or reset the router. To learn more about service offers, click on the "****" customer service 38 below to answer for you.

1. Broadband Internet display "error 678", it is caused by modem damage, poor contact of network cable and network card, ** line obstruction, etc., if there is a router, it is recommended that you can first power off and restart, if it is still not available, it is recommended that you remove the router and check whether the modem signal light is normal:

1. If it is normal, please try to restart the network card, unplug the network cable, and restart the modem;

2. If it is not normal, please try to unplug the ** cable, restart the modem, check whether the separator is connected correctly and unplug the above cable.

2. If it cannot be solved, you can contact the local manual customer service for feedback.

Dear Hello Dialing Unsuccessful Display 678 may be due to the following reasons:1Poor mobile phone signal or no signal area town brother; 2.

Mobile phone SIM card failure; 3.The phone does not have permission to dial the number; 4.** The number is entered incorrectly; 5.

Carrier network failure. The workarounds are as follows:1

Move the location, try to dial from a place with a good signal**; 2.Try to change the SIM card or contact the carrier to solve the problem; 3.Activate the permission to call the number, or contact the operator to inquire whether the number needs to be activated; 4.

Double-check that the ** number has been entered correctly; 5.Wait for the carrier network to return to normal.

<>1. Definition of Dialing Error:

Error 678 is one of the faults of broadband. The implication is that the remote computer is unresponsive. To put it simply, the network is not working.

Broadband dial-up Internet access is connected using PPPOE protocol, and the meaning of error prompt 678 is that the remote computer is not responding, which means that the computer sends instructions to the network card to send data outward, including the transmission of network cables, and the port of the terminal board of the central office (computer room end) processes the data transmission problems in the process of returning the number of spine basis balances to the computer.

2. Common reasons:

There are many reasons for error 678, such as: equipment problems in the computer room, backbone cable problems, wiring cable problems, user network cable problems, user computer network card problems, user computer system problems, etc., which may lead to error 678. Another reason is that if you use a router, you usually don't need to use a broadband connection anymore, and if you use it again, you will get a 678 error.

3. Solution:

1. Please confirm whether you are using a router, if you are using a router, the dialing operation is completed by the router, and there is no need to manually dial the number on the computer;

2. Please confirm whether there are any software restrictions such as firewalls or other Internet assistants, and if so, it is recommended that you log out and then try to dial;

3. Please check whether the network card light is flashing, check whether the crystal head is plugged in, and push the network cable inward for testing;

4. Please deactivate the local connection after deactivation, and then re-connect the broadband connection, the specific method: right-click the desktop network neighbor, select Properties, right-click the local connection in the new pop-up window, select Deactivate, and then right-click the local connection later, select Enable, if the dial is still prompted 678, you can call the customer service to contact the engineer to check;

Note: Try not to replug the Ethernet cable more than once, reinserting the Ethernet cable multiple times may damage the crystal head.