"V Green" <vanceg@nowhere.net> wrote in news:#qaajN5CJHA.4340
@TK2MSFTNGP02.phx.gbl:

> I believe that I have seen code to disable/enable devices
> that show up in Device Manager. If disabling/enabling
> the port/cable revives the device then you could go this
> route rather than rebooting the entire system. Try Google.
>
> Also, it isn't necessary to ping things to find out whether
> or not the modem has hung. Simply issuing an AT command
> and looking for the OK response (after enabling verbose mode,
> etc.) will keep things local. No OK, no comm.
>
> For testing purposes, you can probably initiate a "hung"
> state by disconnecting the RJ-45 cable from the modem while
> it's in use. Or by pulling the USB cable from the computer
> while off-hook.
>
> If that works, you have all the necessary tools to write your
> own custom solution, which it sounds like you will need to
> do, given the description of your situation.

I found a Microsoft application, called DevCon, that claims to give command
line control over devices.
http://support.microsoft.com/kb/311272
I'll play with that if simply disabling the device solves the problem.
Thanks.