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COM ports not mapping in remote environment

Posted on 2014-01-29
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Last Modified: 2014-02-08
Hello All,

I have a very peculiar scenario that I was looking for guidance with.  

Situation:

We have a client who is using HP t5740e model ThinClients with Windows 7 Embedded Standard (32-bit) loaded onto them. They are using usb-based barcode scanners, that when connected, are associated with a COM port (COM5 to be specific). The COM ports map just fine locally, but upon trying to establish a remote connection with a terminal server, the mapping is lost and cannot be reconfigured.

I have ensured that local resources are checked to pull through, and that all physical devices that can be mapped, are indeed mapped. I have even gone as far as configuring a startup script that maps the specific com port for the device.

If you have any questions, or need further details, please let me know, and I can further elaborate.

Thanks in advance.

Mike Widel
Crossroads Technologies, Inc.
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Question by:Crossroads305
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5 Comments
 
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Expert Comment

by:Davis McCarn
ID: 39820663
1. Did you install the drivers on the server?
2. Read this: http://help.lockergnome.com/windows2/Problem-Solved-Barcode-Scanning--ftopict480563.html
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Author Comment

by:Crossroads305
ID: 39821556
Davis,

Thank you for the response. I have indeed installed the drivers on the server, and the same drivers that match the local workstation.

Thank you for the reference link, this does not seem to be related to the issue that I am experiencing, but I will keep it in mind just in case I notice any similarities along the way.

Thanks,

Mike Widel
Crossroads Technologies, Inc.
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LVL 43

Expert Comment

by:Davis McCarn
ID: 39823865
Most barcode readers appear to the software as keyboard input so you might want to try it.
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Accepted Solution

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Crossroads305 earned 0 total points
ID: 39826824
So this ended up being a completely different situation, but I believe I have resolved it.

Long story short, we are using 2x to publish out a remote application, that allows for barcodes to be pulled from local device plugged in, to be uploaded to an ordering website. The devices are cheap and have a barcode clearing button on the top, but the button is not doing its job, and the barcodes kept stacking on top of themselves, even though the clients thought they had cleared them.

Found an application that ensures they are deleted. Each scanner had over 1000+ barcodes, and the remote application could not handle that amount of barcodes, so it would time out and appear that the com port was not mapped properly.

What a doozy.
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Author Closing Comment

by:Crossroads305
ID: 39843900
Problem has been resolved.
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