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mzehner

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Windows 2000 Serial port failure

I have a system that can boot:
Linux
Windows 98SE
Windows 2000

I have an external modem connected to COM1.  I can use the COM1 port with the serial modem and access the internet when booted to Windows 98.  However, when I tried to use the modem with Windows 2000, it tells me the modem is not there.

I checked the device manager serial ports and both COM1 and COM2 which are on the motherboard have a yellow ! next to them.  The system says the device is not working properly, yet it works fine when running Windows 98.  All other devices are working properly on windows 2000 and there are no port or IRQ conflicts reported that would use IRQ3 or 4 or the COM port's I/O addresses.

I tried to re-install, then unstall the serial ports, but when the system re-boots it re-installs the serial port and the status is still the same.

I had recently swapped the motherboard on the system (Same name brand, from ASUS P3B-F to P2B-F, and Windows 98 recovered nicely and I thought Windows 2000 had also.  However, I'm not sure if the COM ports were working properly on Windows 2000 prior to the motherboard swap.

Any help is appreciated.
Avatar of Housenet
Housenet
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-Verify that something like a mouse works properly when connected to com1. I doubt its the actual 2000 serial drivers, but just to be sure..try it.
-I can tell you that p&p modems seem to work best on 2000 so, do you have a recient usr-sportster, or other modem to test with ?
-If your BIOS has settings assigning PNP or LEGACY mode for IRQ4, try reversing the current settings & testing.
-You'll at least pin point the source of the problem by troubleshooting it this way.
Avatar of Rey Obrero (Capricorn1)
An exclamation point on the icon means the hardware device is incorrectly configured or drivers are missing.
-Find out where the driver for your modem is located on the CD that came with it.
-From the Device Manager higlight the device with ! , then click remove.
-From the Control panel, double click on modem/phone, select the modem tab. IF there are/is anything listed there, highlight and remove them.
-Then select Add, the Add/Remove hardware wizard pops up
-Check the box "Don't detect my modem........" Then click next.
_locate your modem from the list, if it is not there select Have disk and point to the CD where the driver for your modem is.

Have a nice day!!!
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Portang

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mzehner

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The Ports are set up as Portang stated.  I still get the same results.  I disconnected the modem thinking it might somehow be messing up the serial ports, but that had no effect.  The com ports are still not working.

There's no reason I can think of (Except for Bill's Bugs OS)that would cause Windows 98 to see the ports correctly and Windows 2000 to not see them correctly.

Do I need to re-install the OS to fix the problem?  Would it even have a snowballs chance in ... of fixing the problem.  This is frustrating.
-mzehner you seem to have completely ruled out hardware defects with your win98 results. The problem is related to the fact that you are either using a modem that is not 2000 comptable or the incorrect driver. Is this modem in the HAL? What brand & model ?
The fact that you have used the Modem to connect to Internet under Win98, proves that your COM ports and Modem are working.
As I have stated under Win2000, an "exclamation point" on the icon means the hardware device is incorrectly configured or drivers are missing.
Check Microsoft HCL (Hardware Compatibilty List) if your modem is listed.
If it is not listed, you have to install it manually.
capricorn1 I appoligise for repeating suggestions you clearly made before me.
-My revised comment is "mzehner, I agree with capricorn1 100%"
Greetings.

This question remains open today; perhaps just overlooked this or it just got lost in the volumes. If you've been helped to resolve this, please accept the comment which helped you as the accepted answer to then grade and close so that others may benefit from this information as it migrates to our PAQ Database. If more is needed, please update here via comments so that you can achieve your goal.

Your attention to finalizing this is very much appreciated.

Thank you.
":0)  Asta
I have found a very similar problem.
I think it is a dual-boot issue between Win98 and Win2000.
I have described my problem at http://forums.overclockers.com.au/showthread.php?s=&postid=1408846
and
http://forums.overclockers.com.au/showthread.php?s=&threadid=122431Unfortuntely I do not have a solution yet.

There is another relevant posting on this site at https://www.experts-exchange.com/questions/10181464/Modem-detection.html.

Please also see
http://www.microsoft.com/windows2000/techinfo/reskit/en-us/default.asp?url=/windows2000/techinfo/reskit/en-us/prork/prbb_iwp_cwow.asp
and
http://www.microsoft.com/windows2000/en/professional/help/wgs_gs_03011.htm, which says that Win98 and Win2000 can be installed in any order and that "Windows 95 or Windows 98 might reconfigure hardware settings the first time you use them, which can cause problems if you're dual booting with Windows 2000."  But no details/solution.
Avatar of mzehner

ASKER

Thanks for the heads up.  I never got the problem solved and now only use the internet with Windows 98.  I think I may have had to re-install or repair my windows 98 installation after installing Windows 98 the first time.  This may have contributed to the problem.  Microsoft says not to use NTFS for the windows 2000 installation if dual booting with Windows 98, but I wonder if it would help since Windows 98 should not be able to access the NTFS partition and change the settings.

If it caused booting problems, I would just use another boot loader.  Some ideas for the next installation...