This is a followup to Shannon's Bluetooth email. I don't think the COM port 
services had anything to do with the problem, actually. After powering off 
my NXT brick and powering it back on (while leaving the Lego software 
going), it failed to establish a connection with the computer and the Lego 
software says "Unavailable". For kicks, I tried connecting using the NXT 
brick and the brick display said "Line is busy".

To get it working I selected "Remove" for the NXT Bluetooth connection in 
the Lego software. Once it's gone, close the Lego software and turn off the 
NXT. Turn on NXT. Run the Lego software and select SCAN. Connect. Enter the 
codes (and try to hit the orange button really fast on the NXT when it pops 
up - it didn't work a few times). From there it worked fine for me. I guess 
the moral of the story is don't turn off the NXT brick once you get a 
Bluetooth connection going.

I still haven't figured out if this is an older firmware problem or a 
Logitech driver problem.

- Brian

----- Original Message ----- 
From: "Brian Bagnall" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, July 11, 2006 3:36 PM
Subject: Re: [Lejos-discussion] Clicking Brick and Bluetooth


> Hi Shannon,
>
> I had some problems with my Logitech Bluetooth dongle which uses the
> Logitech Bluetooth solution (not the default Windows XP solution). I was
> messing around with COM ports with Bluetooth and it stopped working for 
> me,
> and I think it's because I added COM ports to the list of services for the
> NXT. If you try to use "My Bluetooth Places" to connect to the NXT, once 
> it
> shows a connection you can no longer connect properly using the default 
> Lego
> software (it says "line in use" or something like that).
>
> To get rid of the COM service, right click My Bluetooth Places and select
> Advanced Configuration. Under the Local Services and Client Applications
> tabs see if there are any COM ports set up (says COM4, COM6 or something
> next to them). If you see any COM's delete them (you can readd them later 
> if
> need be).
>
> Turn off your NXT and try rebooting your computer. Once rebooted, turn on
> your NXT, then launch the Lego software and start/load a program, then 
> click
> on the NXT brick icon and see if it will connect.
>
> As a last resort, you might want to uninstall your dongle manufacturer's
> Bluetooth software and go with the default Windows XP solution. The
> "enhanced" Logitech solution sometimes seems flaky and I'm guessing the
> native XP solution is more stable.
>
> - Brian 



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