You try to connect your Windows 8 laptop to the Internet, but it doesn’t connect and returns the following error instead:
Error 651: The Modem (or other connecting device) has reported an error.
This error usually occurs because of some problem with the ISDN device driver.
The error, if it is due to ISDN device driver, can be easily resolved by updating the ISDN driver. However before you do that, we recommend you to ensure that the wireless is switched on. If you have done that, or if it is already on, but you still get the error, install the latest version of your ISDN device driver.
To do this, download the latest Windows updates and check if it contains an update for your ISDN device driver. If it does, install it. In case it doesn’t, install the latest ISDN device driver manually or use a driver update tool for this purpose. The latter, it must be said, is a more efficient, quick, and reliable way of updating device drivers, including the ISDN driver.
Error 651 is most likely to go away after you install the latest ISDN device driver.