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Author Topic: CM15A Kills COM ports  (Read 23517 times)

arf1410

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CM15A Kills COM ports
« on: June 06, 2005, 11:48:40 PM »

I found these posts on another automation
forum.  Can someone explain this a bit
better to me, and also clarify how to fix
this problem (para 2). Also X10 Pro- can
you comment / verify this info?  Does X10
Pro's serial ports work with AHP installed?

"I tried to give the CM15A a spin, but did
not get very far and now have an
undesirable side-effect. It turns out that
once the CM15A usb drivers are installed
they introduce a layer on top of the COM
drivers and the COM ports will not work
unless the CM15A is installed"

"I am new here. I have also experienced the
COM ports not working after installing the
drivers for the CM-15A. Even when you
uninstall them, a system service is left
behind that kills your serial ports. Just
look for the system sevice (X10net or
something like that) and disable it (set it
to "disabled" so after next boot you don't
have to do it again). COM ports will work
again after that."
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carmine pacifico

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Re: CM15A Kills COM ports
« Reply #1 on: June 07, 2005, 09:37:10 AM »

Arf1410

Are you referring to a physical COM Port or
a USB to serial device?
I do not have much confidence in the CM15a
+ AHP, and yes they do leave that annoying
X10net running even after uninstall, but I
do not think it should affect your other
port settings.
Many USB enable peripherals devices add a
virtual COM driver, win XP can have up to
256 virtual COM ports, what is probably
happening, windows mapped the CM15a on the
same COM port number as your other devices,
you can easily change that: go to System
property, Ports (Com & Parallel) select
port settings _> advanced and make sure
that the CM15a and your other serial device
are set to different COM numbers.
Before you make the changes both devices
need to be plugged in.
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arf1410

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Re: CM15A Kills COM ports
« Reply #2 on: June 07, 2005, 11:09:33 AM »

yes, physical com ports, not USB to serial
adapter.  My physical COM ports haven't been
able to talk to my GPS or CM11A since
installing AHP...I have tried messing with
the hardware / device mgr, but no success.

Do your physical COM ports work when AHP is
installed?
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carmine pacifico

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Re: CM15A Kills COM ports
« Reply #3 on: June 07, 2005, 12:54:48 PM »

ARF1410

My computers do not have physical serial
port.
You need to check with X10net running, the
resources allocated, it is possible that
Windows has mapped the CM15a COM driver
with the same COM number as your physical
COM port. Make sure you physical COM is
enable in the bios and should be set as
COM1 or COM2.
What version of windows you are running?
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arf1410

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Re: CM15A Kills COM ports
« Reply #4 on: June 07, 2005, 01:12:24 PM »

I am using XP Pro ...

Why would the CM15A map a com port? it is USB

X10-Pro - I would like a comment on AHP and
COM ports...
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X10 Pro

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Re: CM15A Kills COM ports
« Reply #5 on: June 07, 2005, 02:26:58 PM »

ARF: Does this problem happen if the CM15A is
plugged in? It shouldn't. There's some legacy
support for the CM17A that will grab a serial
port, but that should happen if there's an
X10 USB device present. In fact, it shouldn't
happen at all, since that code is supposed to
have been disabled. There's a registry entry
that will fix the problem. I promised that to
a couple people, so I'll send it out to all
of you today.
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arf1410

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Re: CM15A Kills COM ports
« Reply #6 on: June 07, 2005, 02:42:01 PM »

Just to be clear, you think the COM ports
might work with the CM15A attached, but not
work with the CM15A not connected?

Have you tested X10 computers COM ports, to
see if they still function normally with AHP
installed?

I've got to conenct my GPS in the next night
or 2, so I will test it...
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arf1410

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Re: CM15A Kills COM ports
« Reply #7 on: June 08, 2005, 12:32:31 AM »

how do I disable X10net ???
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arf1410

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Re: CM15A Kills COM ports
« Reply #8 on: June 08, 2005, 12:35:05 AM »

OK - my COM port DOES work with a CM15A
connected???!!!!
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arf1410

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Re: CM15A Kills COM ports
« Reply #9 on: June 08, 2005, 12:55:10 AM »

tried it again with AHP running, and no
luck...
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arf1410

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Re: CM15A Kills COM ports
« Reply #10 on: June 08, 2005, 02:20:52 PM »

X10-Pro -

You said yesterday you would send out a reg
fix for this problem...When?
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X10 Pro

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Re: CM15A Kills COM ports
« Reply #11 on: June 08, 2005, 03:02:23 PM »

arf1410: I just sent you what you need.
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arf1410

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Re: CM15A Kills COM ports
« Reply #12 on: June 08, 2005, 11:38:56 PM »

I ran software you provided, and GPS would
still not connect via serial port.  Tried
it with Cm15A connected and AHP running
(which worked once last night).  Didn't
connect...Rebooted PC, and tried again.  No
luck...I'm frustrated...
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arf1410

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Re: CM15A Kills COM ports
« Reply #13 on: June 09, 2005, 12:14:09 AM »

OK - the only way I can talk to my CM11A or
GPS (my only 2 serial devices) is if I boot
the PC with the CM15A connected.  Even with
this done, if I disconnect the CM15A after
boot up, I can no longer communicate via
the serial port ... this tells me that it
is the CM15A, in some way, shape, or form,
that has messed up my serial ports!
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carmine pacifico

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Re: CM15A Kills COM ports
« Reply #14 on: June 09, 2005, 10:01:16 AM »

Arf1410

Considering the mess the web installer
does, I would not be surprised if other
unnecessary drivers are installed that
locks the serial port.
As I suggested before, they are ways to
check if your port is working correctly,
under “Computer System Property – Hardware –
Device manager - Ports”, it’s evident that
you have another device driver that lock
your COM port, unless you provide some
information from the System property, it’s
next to impossible to help you.
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