• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 3725
  • Last Modified:

Modem fails: "The port that the modem is using is currently open by another application"

Hi,
I've installed SmartLink 56K Voice Modem in my Pentium 4 WinXP system. The Modem line in the control panel looks ok (no question mark).
When I dial, I get the following error message:

"The port that the modem is using is currently open by another application. Exit any application that may currently be using the port."

I checked my applications. None seem the cause. I tried changing the COM port, but all alternatives end up with the same error message.

I checked the Ports list on the control panel, and only COM1 and LPT1 show up.

What's wrong? An application? A missing COM port? or else?

Ran
0
chermesh
Asked:
chermesh
  • 4
  • 3
  • 3
  • +2
3 Solutions
 
chermeshAuthor Commented:
Hi,
Thanks for the link. I tried most of the suggestions, but the problem is still unsolved.
I wonder, can't there be a problem with my COM ports? Should only one port (COM1) be listed in the control panel? Is there a way to set more COM ports? (My modem is preconfigured to COM4, is the a way to add COM4 to the list? Any chance this will solve my problem?

Ran
0
 
FaircoCommented:
Since your modem is using a so called "virtual COM port", it is natural that you don't see COM4 listed in device manager. It is not related to the problem.
Visit this thread, which is related to your problem: http://www.experts-exchange.com/Hardware/Q_21111489.html
0
 
eccs19Commented:
Assuming that the modem is a PCI modem, try it in a different PCI slot and see if that makes a difference.  If your not using a serial mouse / printer / modem, etc,  I would go into your BIOS and disable and of the COM / serial ports you see listed, and see if that helps.
0
Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

 
ridCommented:
Is this a software modem or a real modem? COM 4 is not necessarily a "virtual" COM port - any normal BIOS will handle 4 hardware serial ports.

Anyway, you should take a look at what is running on the computer. Some (possibly unwanted) service may be started somehow and it is using/blocking the port.

To find out how many ports there are on the system, take a look in BIOS setup and/or watch the POST screens. One of them is usually a summary of drives, RAM and ports (COM and LPT) present on the system.
/RID
0
 
FaircoCommented:
Fellow experts, I'm really surprised that you are all still not sure about what type this modem is. A search engine tells it in no time, therefore start with the fact that this is a PCI soft modem.
Have a look at this:
http://tekgems.com/Products/et-9778-mdm-i56ksp-f00.htm
0
 
ridCommented:
So, a fake modem... Anyway, I usually ask these questions in the hope that the authors will realise that:  A) They should try to find out these things when they shell out the $$ for the component, and,  B) it helps if they include as much detail in the question as possible from the start, so that they get better help at an earlier stage.

As this indeed seem to be a software modem it is likely that it has gone bad, or that the drivers need to be reinstalled again after all references to a modem or a COM4 has been removed in the O/S device manager. Also a thorough check for any rogue processes (spyware, trojan, virus) needs to be performed.
/RID
0
 
chermeshAuthor Commented:
Hi,
Thanks for your comments and suggestions. Let me add details about my modem. It's a FM-56PCI-SL, produced by Well Communication Corp. (http://www.wellgroups.com).

The discusion whether the modem is a soft (fake) modem or hard (?) ("real"), is new for me.

So, is my modem soft or hard? Does it make a difference is term of solving my problem?

Ran
0
 
ridCommented:
A hardware modem has an on-board serial port that adds itself to the computer as an additional serial (COM) port besides the normal 2 ports. Behind the serial port hardware sits a modem, just like an external modem would be connected to an outside serial port. The computer BIOS will detect this hardware as a third serial port ("COM 3" on a windows machine). You can communicate with this modem with very simple means even if you were booting into old-fashioned DOS, running some old comm software.

A soft(ware) modem is very much simplified in the hardware department and relies on drivers and other software components to do the job of a real modem. It hasn't got a real COM port for the BIOS to detect, so it will create a "virtual" COM port, detectable only from your O/S (windows, most likely) after the drivers are loaded and active. Such modems seem to be prone to failure and they are sensitive to driver corruption as well. Testing the hardware of such a modem is probably beyond most home users unless a proper diagnostic program is included in the software that comes with it.

So, if it is a soft modem, which seems to be the case, you can only try to remove it  and its drivers and then reinsert it and reload drivers. Also check for interference from unwanted programs or processes running on your system.

/RID
0
 
FaircoCommented:
There were several suggestions about how to resolve the problem. We are now waiting for the asker to inform us on the outcome. If we still get no response, I recommend a split accept among everyone who suggested solutions, namely me, eccs19 and rid.
0
 
ridCommented:
Sounds OK to me.
Cheers
/RID
0
 
eccs19Commented:
I'm OK with that to.
0
 
chermeshAuthor Commented:
Sorry for keeping everyone waiting.
Thanks for your suggestions. Unfortunately, none solved my problem. The pc I asked about is no longer in my possesion, and therefore I can't test new ideas.
Since so many tried to assist, the fairest option is to accept Fairco's idea to share  the points equally among the three of you.
Thanks for the efforts and sorry for the delay in my response.

Ran
0
 
Harold_SternCommented:
I am suffering this same problem and the above discussion seems inconclusive. Can someone put me straight, please? Other information is that if I run the Modem setting helper it indicates that the (new) card is not reacting correctly and then gives result code: 0106101-0.0. I have tried, without success, uninstalling and reinstalling the card and moving it to a new slot.

The installation is on a new PC under WIN XP Pro SP2 with all avaialble updates installed.
0

Featured Post

Keep up with what's happening at Experts Exchange!

Sign up to receive Decoded, a new monthly digest with product updates, feature release info, continuing education opportunities, and more.

  • 4
  • 3
  • 3
  • +2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now