This article will guide you through the troubleshooting for no internet connection (no sync) on an ADSL1 or ADSL2+ broadband service. Symptoms
Things to check first
Troubleshooting
If your modem gets back online while it is isolated
More information Why do I need to test a different modem or try my modem somewhere else? Connection problems can be caused by several things, but one of the most common causes is faulty hardware. If your modem can get online at a different location that has a working internet connection, then it’s safe to say that the modem isn’t faulty. What do I do if I suspect my home has internal wiring issues? If your modem works when it’s plugged into one phone socket but not another, you may have internal wiring issues. If you suspect this is the case, please contact a registered electrician. This means that they are properly licensed to work on communications cables.