I wonder if the attempts at setting up the connection could have messed up your profile resulting in the lower than usual speeds.
If this is the case it could just be a matter of waiting 3 days for your speed to pick up.
Can you post your line stats. There is a page within the router interface that displays the line stats.
Go to click here
Click on the "Access to the configuration pages" link, then choose System Information from the menu on the left.
If you are prompted to login, the default is username is usually admin and the password is admin.