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USR Modem 3CP566A  " Could not Open Comm Port"

Posted on 2004-03-20
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Last Modified: 2013-12-27
Hello,
I have a USR Modem 3CP566A installed ( Win 98SE ) but get " Could not Open Comm Port"  I've updated driver and even updated to the V.90 standard and have same problem?

The modem shows in control panel as a " US Robotics 56K Fax Win Int " and shows working Properly

 Modem Dianose  - More Info   - Responds could not open Comm Port.    

New Discovery!!    Modem works in AOL 8.0+  that was already installed in system!!
 
      Windows 98SE still reports " could not open Comm port "  Could AOL be keeping the port open??

 
                                  THANKS!!
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Question by:NHRatt
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by:HippyWarlock
ID: 10644344
I take it then that you wish to use another ISP and not AOL - Can I suggest uninstalling AOL first? AOL has some rather unique attributes that may confuse this issue.

HTH - Peace
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Author Comment

by:NHRatt
ID: 10646231
Hi Hippy,

   NO! My customer is Happy with AOHell!!

 This is just the first time I've seen the kind of response from windows AND the modem Does Works!!  

I'm guessing that AOHell just ties up ( Comm 3 ) and there fore windows can not "open" it??  

 I guess My Question would be Why??  Confirmation of my logical Guess?
          OR the real reason(s) IF anyone knows.

                       Also wanted to post it as an FYI:

  Let other be aware of this working modem situation but still have this Windows "Error"  being reported  :o)  

                                                      THANKS!!   - Randy
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by:HippyWarlock
ID: 10646378
AOL used to use com3 with my old modem, so I suppose this could also be the case with you, and if you (or AOL) are using com3 then you cannot obviously open it again.

I think I may be missing something here? Is windows reporting this as an error? Or only when you attempt to open com3 whilst already open?

My head hurts :-)

Peace
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Author Comment

by:NHRatt
ID: 10646495
Hi Hippy,

       Sorry,  For Clearification!!

 I still get this Report "Couldn't Open Port"
When I Run Windows Modem Diagnostics - More Info.
but, Modem IS working properly for AOL.
 

  I AM only Using Com 1 in System Bios.
  The Modem auto assigned itself to Com 3 (PnP)
  Com 3 does not show up under Ports in Device Manager.

  The System / AOHell works. So, just wondering Why??

          I get error message from windows when Modem Works!!
                           and again to Post as an FYI! :o)
 
Sorry, for the Miscommunication and the Headache.      - Randy
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Accepted Solution

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HippyWarlock earned 500 total points
ID: 10646565
Com1 + 2  are real com ports Com3 + 4 are enumerated.

Com3 If in use by AOL at the time (and it may hang onto it after you stop using AOL - re-boot may be needed) will show as being in use by modem diagnostics, as AOL is using it.


Yours standing pensively awaiting correction by senior experts - Peace
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by:HippyWarlock
ID: 10654230
TY  - Stay well.
Peace
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