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New Hardware Found- fails, the specified port is unknown

Posted on 2004-11-17
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Last Modified: 2008-01-09
Hello,
I'm running Xp Home, SP2.  I have a HP Laserjet 4L on a LPT port.  The printer works fine but that annoying "New Hardware Found Wizard" pops up on each reboot.  It's all automatic and I have no choices or options to stop or redirect it.  When it finishes it says "there was a problem installing this hardware an error occured during the installation of the device".  "The specified port is unknown".

I think during the original install it was looking for LPT 3.  I have a NetMos PCI parallel port card installed (I have two printers on LPT ports).  I probably screwed up the installation of the card the first time and set it at LPT3.  I corrected it later and set it at LPT 2 which the printer likes better.  The New Hardware Wizard hates it though.  

I followed another similar problem posted for a HP750 on a USB connection but none of those suggestions worked for my problem.

Should I uninstall the card and reinstall or any other suggestions?
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Question by:DaveSlinger
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by:kcarrim
ID: 12603306
Remove all the ports from device manager. Remove all installed printers. Check your bios for ECP/ECC Printer port IRQ and address. Make sure when you reboot that there is no IRQ conflicts.

Reinstall  NetMos PCI.

Look device manager, ports, ecp printer port. Go to port settings. Change the filter resource methot to "Use any interrupt asigned to the port". Also check box that reads "Enable legacy Plug & Play detection".

Now reinstall your printers one by one. First install LPT printer(s) then USB printer.
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Author Comment

by:DaveSlinger
ID: 12620183
Thanks for the quick reply KCarrim.  I'll check it when I get home this evening and let you know how it went.
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Author Comment

by:DaveSlinger
ID: 12621772
Okay, I think we are close.  I did the uninstalls of the ports and the NetMos PCI LPT card, checked BIOS.  Reinstalled card, noticed it defaulted to LPT3 (I think this is were I messed up last time by changing to LPT2).  I let it stay on LPT3 this time.  

No "new hardware found wizard" yet during any of the reboots.

Installed the one HP2100 on the motherboard LPT1.  Okay, no problem.

Now, I'm about to install the problem printer HP4L.  Using the "add printer" icon in "printers and faxes".  I get to the point where it asks which port do I want to use?  I look for LPT3 and it's not there.  There is LPT2 and LPT1.  LPT1 says (recommended) but I know that port is already in use.

I didn't want to go any further so I stopped here.
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kcarrim earned 1000 total points
ID: 12623172
Ok. You should have only 2 printer ports. HP1200 on LPT1:ECP Printer Port. LPT2 will now be Netmos PCI Printer port. Install HP4L on this port. Remember to test each printer before installing the next one. When both are installed and working, you can install USB printer. You must decide which printer will be you default printer.
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Author Comment

by:DaveSlinger
ID: 12643723
11-22-04
Okay, KCarrim problem solved.  I kept thinking there was something wrong with the New Hardware Wizard when it was the LPT card all along.
Thanks for your help and advice.
DAVE
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by:kcarrim
ID: 13253538
Any points for me? :-)
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by:kcarrim
ID: 13506603
Please award points and close this question. Thanks! :-)
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