How to Fix Error 678 PPPOE Issue on Windows (All Versions)

Error 678 PPPOE

When you try to surf the Internet you get a message says "Error 678: The remote computer did not respond", it means there is a problem with the connection between you and your Internet service provider. The error 678 can occur on all Windows version after Windows XP, and it results from a wide range of problems, so, it is difficult to find out the causes.

Let me show you an image which lists the possible causes for error 678.

Error 678 Possible Causes

The things listed inside the red outline border are possible causes. Checking for possible causes along all steps of your connection is the best course for fixing error 678 issue. Let's see what can do.

Check for Problems

(1) ISP

Did you pay the last bill from your ISP? If you forgot to pay the bill and it is overdue, ISP will suspend your Internet connection. Sometimes you received the error 678 is just because that the ISP's facilities are under maintenance.

(2) Network Cable

Check the network cable if it is connected to the computer and to the modem correctly. If you have a hub or a router in your network, make sure that the network cable is connected to all devices properly.

(3) Modem

If you use a dial-up connection, make sure you dial in to the correct number. If you use a broadband connection, follow the steps below:

  1. Turn off the modem.
  2. Wait 5 minutes.
  3. Turn on the modem, and see the lights on the modem. If there are frequent blinking red lights on the modem, it probably means there is a problem on ISP side. Call ISP to see how to solve it.

(4) Network Card

If you are using a new computer, and didn't use it to surf the Internet yet, you should install or update driver for the network card.

(5) Firewall Software

Some third party firewall software may cause the problem. To try isolating the problem, turn off or uninstall the firewall program and test the machine.
After uninstalling or turning it off, the error 678 is solved, you should make the firewall rules laxer, or ask for a solution from the Firewall software's technical support.

(5) Malware

Malware programs such as computer virus, trojan horse and spyware will make changes to the network settings. The steps you sould do:

  1. Click Start, type netsh winsock reset, and then press Enter to repair Winsock and TCP/IP.
  2. Update the antivirus program you installed to the last version, and then scan for and remove malware.

(6) Your Computer

Make sure that the network adapter is enabled.

  1. Click Start, type ncpa.cpl, and then press Enter.
  2. If the Local Area Connection icon is gray, right click on it and then click Enable.

If the problem persists even after checking the possible causes described in this article, you can leave a comment and describe your conditions, we will try to answer you the possible solutions.

Hope this helps.

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