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Modem can not find port.

Posted on 2003-12-09
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Last Modified: 2013-12-27
hello i bought a used PC i want ot install a modem I Have a Creative Modem Blaster, DI5660,
Windows detected the modem and loaded the driver,
i go to device manager, no problem there , the device is working properly.
when i go to Modem properties, to test the modem this is what happen:
on General tab i see the modem listed there,
i click on Diagnostic, the modem is not in com1, or com2.
just there, it ssays COM1 , No modem installed, the same for COM2, AND y see a serial mouse, also there, ,
i dont have a serial mosue on this pc,
so how come device manger says , device working properly , when on modem properties i can not test the device,
how do i install it on com 3, or COM4, , any ideas , the pc is a DELL Optiplex Gn 5166l EM, WIN98SE,
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Question by:OCU
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7 Comments
 
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Accepted Solution

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lidsky earned 100 total points
ID: 9912120
I believe you have a ISA plug-and-pray modem. The ISA bus is not truly plug-and-play, so there is probably a conflict between the modem's COM port and the on board COM ports.

If you are not using the on board COM ports, it's best to disable them in the BIOS and remove them from Device Manager.

The drivers supplied with Win98 are most probably not the latest, so go to http://us.creative.com/support/downloads/
and dowload the latest ones.

Also check in Device Manager to see if you don't have 2 mice installed. The previous owner may have been using a serial mouse. If you find a mouse on a COM port, delete it from Device Manager.

Once you've cleaned up and deleted un-needed devices the OS should find COM port 1 on the modem card.

The thing that makes installing modem cards confusing is that the card is really 2 devices, a COM port with a modem behind it.
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Author Comment

by:OCU
ID: 9917117
thank you very much lidsky, the modem is working just fine now. is on COM4, gracias.
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Author Comment

by:OCU
ID: 9917983
not to fast , amigos, the modem report no dial tone, the phone is fine i tested with the phone and has a dial tone , but when i connect the phone lint into the modem , no dial phone is detected. .the modem make some noise like trying to connect but hang up, after a few minutes, .
I  am sure the phone line connected to the modem has a dial tone. what could be wrong,
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Expert Comment

by:lidsky
ID: 9920431
The modem may be defective. Is it a new one?
Or the modem may not be totally compatable with your TELCO equipment.

Try plugging the telephone into the modem and lift the hand set, make sure there is a dial tone.
Try connecting using the modem. If the modem starts dialing then there is a compatability problem.
If the modem still reports NO DIAL TONE then the modem is probably defective.

You may want to check in Device Manager to make sure that there are no IRQ conflicts, but I don't think you will find any.
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Author Comment

by:OCU
ID: 9923973
i did try plugging the telephone into the modem and no dial tone, so I think the modem is dead.
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LVL 5

Expert Comment

by:lidsky
ID: 9924020
>"i did try plugging the telephone into the modem and no dial tone, so I think the modem is dead. "

That is strange, the two connectors are just wired in parallel. If you are not getting a dial tone with the phone plugged into the modem then either one of the RJ-11 jacks are bad or you have a bad cable.

I suggest that you check the cable from the wall phone socket to the modem.
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Expert Comment

by:lidsky
ID: 9924224
After re-reading our interchange I realise that there are some ambiguities.  So, if I understand the situation correctly, the following is what is happening.

Wall Telephone Jack>>>>>>>Modem                                          Result = No Dial Tone Error

Wall Telephone Jack>>>>>>>Telephone                                     Result = Dial Tone Heard

Wall Telephone Jack>>>>>>>Modem>>>>>>>>Telephone         Result = No Dial Tone Heard

If this is the case then I will put my money on a bad cable between the Wall Telephone Jack and the Modem.
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