Troubleshooting connection issues
Use the following information to identify and resolve issues.
General issues
- Test your connection. All tests must be successful for your connection to operate correctly.
- Close all applications and try to connect again.
- Restart your computer and try to connect again.
- If your computer is connected to a network, try connecting from a different computer to determine whether the problem is with your local computer or with the network.
- If you have a dial-up internet service provider (ISP), try connecting to the ISP first and then use the direct (LAN) connection.
- If an update is available for your application but DT Connect did not download it, try deleting and reinstalling the updates.
- Disable all firewall, internet security, and spyware applications to see if these applications are causing problems with your connection. Be sure to re-enable these applications when you finish troubleshooting.
Proxy servers
If your computer connects to the internet using a proxy server, make sure the HTTP proxy address and port number settings for DT Connect match your Internet Explorer settings. Complete the following steps to view these settings.
- DT Practice: Choose File > DT Connect to start DT Connect. Then choose Setup > Communications and select the Proxy Settings button.
- Internet Explorer: Choose Tools > Internet Options, go to the Connections tab, and then select the LAN settings button.
If your network uses a Microsoft proxy server, verify that the client application is installed locally on each computer that uses DT Connect and that ports 80 and 443 are open to both outbound requests and inbound replies.
Modems
If you have difficulty connecting to the internet using a modem, try the following solutions.
- Verify that the modem is working properly. To do so, open the Device Manager, right-click the modem, and choose Properties to view the status of the modem. How you open the Device Manager depends on which operating system you use.
- In Windows 10, right-click the Start button and select Device Manager.
- Contact the modem manufacturer for diagnostic testing.
Direct (LAN)
If your computer uses a direct (LAN) connection via DSL, T1/T3, or cable and you have difficulty connecting, open an internet browser and try accessing a website. If you are offline, you will get a message asking if you want to connect. Choose Yes.