If you are connected for over 8 hours, you may be disconnected in order to be fair to our other customers. Simply dial back in if you need to continue to use the system. Also, by default, all dial in accounts only allow ONE concurrent connection online. So, if you are online your account, and someone else tries to log on with your account, you may get disconnected. Make sure you are the ONLY person logging on to your account and you should be ok.
Some modems are better than others at holding connections.
Modems that use the Rockwell chipset. If all of the above measures have failed, you may want to disconnect all of your other phone and fax equipment from the line for testing to see if possibly one of your other telecommunication devices is knocking you offline. Check out our In-Depth Troubleshooting article about Unexpected Disconnections . If that is not the case, consult your modem's manual for details. External modems rely on a serial chip inside your computer for the transmission of information across the serial interface between the computer and modem.