When you install your router on a self install ADSL line you cant browse ? no Internet access ?
This is because you have not verified your installation on Telkom's system yet.
When Installing your own ADSL router on an ADSL Self install line you will need to go to Telkoms verification page and verify the installation. To do this go to http://www.telkom.co.za/verifyadsl and fill in your telephone number and order number and submit the page.
Once you receive the verification page information back it will take around 30 minutes for the line to become fully active.