ADSL connection fails to connect with error 651 Content provided by Microsoft Applies to: Windows 8.1Windows 8.1 EnterpriseWindows 8.1 ProWindows 8.1 Pro NWindows 8.1 RTM More Select Product Version All Products Symptoms On a Windows 8.1 system, the initial attempt to connect to the Internet via ADSL (Asynchronous Digital Subscriber Line) may fail with the following error:Error connecting to <ADSL name>Error 651: The modem (or other connecting device) has reported an error.This problem may occur after a reboot, or after a resume from sleep/hibernate. Cause This issue is currently being investigated by Microsoft. Resolution You can work around this issue by attempting the connection a second time. In some scenarios, you may have to reboot and reconnect in order to work around this issue. Last Updated: 7 Nov 2013 Did this solve your problem? Yes No Tell us what we can do to improve the article Submit Thanks! Your feedback will help us improve the support experience.