how do u troubleshoot computer error 678?

Answer 1

Click on Start >> Control Panel.
Double-click on Network Connections.
Right-click on the Broadband connection and choose Properties.
Click on the Options tab.
Ensure the Display Progress while connected box is selected.
Ensure the Prompt for Name and Password, Certificate, etc. box is selected.
Ensure the Redial if line dropped box is selected.
Click on the Security tab.
Ensure the Typical box (recommended settings) is selected.
Ensure the Allow unsecured password box is selected.
Click on the Networking tab.
In the Type of Broadband Connection to Make dialog box, select Point to Point Protocol over Ethernet (PPPoE).
In the This Connection Uses the Following Items dialog box, ensure Internet Protocol (TCP/IP) is selected.
Highlight Internet Protocol (TCP/IP) and click on the Properties button.
Ensure the Obtain an IP Address Automatically box is checked. In addition, the Obtain DNS Server Automatically box should be checked.
Have the Member make a connection. If the connection is not established, then follow these steps:
Click on Start >> Control Panel.
Double-click on the icon labeled Network Connections.
Delete the Broadband connection icon. If there is a shortcut to the connection on the desktop, ensure that is deleted as well.
Recreate the connection by double-clicking on Make a New Connection. Click here for the procedure on creating a connection.
Have the Member retry the connection. If they are still having a problem establishing a connection, go to the next step.

Click on Start >> Control Panel >> Network Connections.
Right-click on the LAN connection associated with the NIC and select Properties.
Ensure Client for Microsoft Networks and Internet Protocol (TCP/IP) are selected.
Go to the Advanced tab and uncheck the Internet Connection Firewall.
Make sure there is only one Broadband connection for HSI.
Right-click the Broadband connection and select Properties.
Click on the Networking tab.
Enable Client for Microsoft Networks and Internet Protocol TCP/IP only.
Go to the Advanced tab.
Disable Internet Connection Firewall and Internet Connection Sharing.
Attempt connection and see if the link light on the NIC and the Ethernet link light on the modem blink for a few seconds when trying to connect:

Answer 2

Error 678 is a message from windows informing you that the connection attempt failed. The connectivity issue may be caused by a hardware or software misconfiguration in your computer or by line related issue such as static , excess humidity, etc.

Make sure that your NIC is enabled or properly configured . If you're using ethernet cable , switched both ends of the cable . If problem persists , call your ISP coz there might be a network issue

Answer 3

Error 678 is a complicated dsl error to deal with. It could be caused by a pc problem, an ISP network outage, a dsl line/signal issues, or the presence of a 3rd party router. So first thing to do is to powercyle your devices, bypass the router, & create a broadband connection. If problems would persist, you need to call your ISP for updates about a network outage or a dsl signal problem

Answer 4

This shud help: http://support.microsoft.com/kb/318009/en-us

Answer 5

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