D-Link DSL-2750E User Manual page 69

Section 4 – Troubleshooting
indicators should be on as well.
Step 4 Please ensure that the settings in the Web-based configuration manager, e.g. ISP username and password, are the same as the settings
that have been provided by your ISP.
4. Why can't I get an Internet connection?
For ADSL ISP users, please contact your ISP to make sure the service has been enabled/connected by your ISP and that your ISP username and
password are correct.
5. What can I do if my Router can't be detected by running the installation CD?
Step 1 Ensure the Router is powered on.
Step 2 Check that all the cables are firmly connected at both ends and all LEDs are working correctly.
Step 3 Ensure only one network interface card on your PC is activated.
Step 4 Click on Start > Control Panel > Security Center to disable the firewall.
Note:
There is a potential security issue if the firewall is disabled on your PC. Please remember to turn it back on once you have finished the whole
installation procedure. This will enable you to surf the Internet without any problems.
D-Link DSL-2750E User Manual 67