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Windows Server 2003 local com ports missing

I have a Dell PE 1850 running Windows 2003 Server.  In Device Manager the Port (COM & LPT) is missing.  I have checked BIOS and the COM port is not turned off yet I cannot see it in Windows.
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keithmendez
Asked:
keithmendez
1 Solution
 
DarylxCommented:
You have to go to View > Show Hidden Devices in Device Manager.
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peakpeakCommented:
Try to add them manually in Control Panel->Add/remove hardware
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keithmendezAuthor Commented:
Darylx:
The only thing that now shows up is Non-Plug and Play Drivers.  However, being curious I expanded that field and saw that Serial has a yellow ! next to it.  Taking the advice from peakpeak I then uninstalled Serial, rebooted, then went into Add New Hardware to add the COM port.  It was added back as COM3 but with errors and another yellow !.  Seems to have both IRQ and I/O Range errors.

I just looked at my other PE 1850 (exact duplicate hardware) and don't see any issues plus the COM and LPT ports show up.  I may end up calling Dell for their support on this.
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johnb6767Commented:
Double click that Serial under NP&P Drivers>Driver Tab>Driver Details... What .sys file is responsible for this? I would suggest rebooting to Safe Mode after removing this Serial device, and renaming the old driver file. Then Expand a new one from the Install CD.....

Any errors in the log when you try and start the driver?
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keithmendezAuthor Commented:
"Double click that Serial under NP&P Drivers>Driver Tab>Driver Details"
There is  no longer a Serial under NP&P Drivers.  No errors in the Event log.
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johnb6767Commented:
Does the following key in the registry exist?

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Serial

and

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\ACPI\PNP0501\5&381fcc12&0

?
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keithmendezAuthor Commented:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Serial = yes

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\ACPI\PNP0501\5&381fcc12&0 = No \PNP0501\5&381fcc12&0
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johnb6767Commented:
Might suggest importing this subkey from the IDENTICAL machine.....

PNP0501\5&381fcc12&0

Might want to call Dell support onthis, if it is a production server.....

I wouldnt have a problem trying this on a workstation, but if the mahcine is of importance, then if you have the support contract, best to use it....

Make sure you have good backups though....


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keithmendezAuthor Commented:
I contacted Dell Support regarding my server.  Their suggestion was to update the firmware and if necessary re-install Windows.  Updated the firmware, this did not fix the issue.  Since this is our payroll server a reinstallation of Windows is not feasible.  I moved the affected application to a working PE that has working COM ports.  
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keithmendezAuthor Commented:
Please close this issue.
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