External USB Modem Works on only One of Three Ports

[Joseph Carrier]

I've installed software to permit using my cell phone as a wireless
modem via a USB cable (Verizon's "Mobile Office.")

Mobile Office works on only one of the 4 USB ports on my XP-powered, Fujitsu
Lifebook -- that is probably the lport I used when installing
Mobile Office. It will not function at all using any of the other
three ports.

I tested the other three USB ports with an external USB mouse to see if they're
functional, and they are.

I thought all USB devices, once installed on a computer, will work on
any and all of the computer's USB ports. What might account for Mobile
Office working on only one of four? (I've asked Verizon technicians;
they don't know.)

Thanks,
Joseph Carrier

[Yves Leclerc]

It could be that the cellphone modem driver is "port locked".

Yves

"Joseph Carrier" > wrote in message
m...
> I've installed software to permit using my cell phone as a wireless
> modem via a USB cable (Verizon's "Mobile Office.")
>
> Mobile Office works on only one of the 4 USB ports on my XP-powered,
Fujitsu
> Lifebook -- that is probably the lport I used when installing
> Mobile Office. It will not function at all using any of the other
> three ports.
>
> I tested the other three USB ports with an external USB mouse to see if
they're
> functional, and they are.
>
> I thought all USB devices, once installed on a computer, will work on
> any and all of the computer's USB ports. What might account for Mobile
> Office working on only one of four? (I've asked Verizon technicians;
> they don't know.)
>
> Thanks,
> Joseph Carrier

[Joseph Carrier]

Merci bien, Yves. I have a follow-up question though: Is
port-locking a "feature" of Windows XP that can be invoked by the user
or some USB modem software -- or is it just an occasional "bug" that
afflicts Windows XP?

Joseph Carrier


"Yves Leclerc" > wrote in message >...
> It could be that the cellphone modem driver is "port locked".
>
> Yves
>
> "Joseph Carrier" > wrote in message
> m...
> > I've installed software to permit using my cell phone as a wireless
> > modem via a USB cable (Verizon's "Mobile Office.")
> >
> > Mobile Office works on only one of the 4 USB ports on my XP-powered,
> Fujitsu
> > Lifebook -- that is probably the lport I used when installing
> > Mobile Office. It will not function at all using any of the other
> > three ports.
> >
> > I tested the other three USB ports with an external USB mouse to see if
> they're
> > functional, and they are.
> >
> > I thought all USB devices, once installed on a computer, will work on
> > any and all of the computer's USB ports. What might account for Mobile
> > Office working on only one of four? (I've asked Verizon technicians;
> > they don't know.)
> >
> > Thanks,
> > Joseph Carrier