How to solve Broadband connection error 678 in Windows

This article is about how to solve the broadband connection error 678 in Windows. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

1. First check whether there is any problem with the computer itself, reset the router settings, it is best to restore the factory settings directly and then reset them (you can also take the router to another computer for testing), then check whether the IP is "automatic acquisition", and finally check whether the network card can be used normally (you can remove the independent network card to another computer for testing).

2. You can try to download the latest network card driver from another computer for installation, and then try to connect.

3. If you have more than two computers in your home, the HUB port used to connect the computer is damaged, and a "678 error" will also appear.

4. Check for software conflicts on your PC, uninstall recently installed software that may cause conflicts, or uninstall antivirus software and turn off the firewall before trying again.

5. If there is no problem with the computer network setting itself, it may be a broadband line failure. You can call the customer service computer to inquire about it. If there is a fault, you can arrange employees to go home to help solve it.

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