Norstar CTA100 devices Not Recognized: UDR008 error

[regorob]

My company has a Nortel MICS 4.0 system which has been functional for a long time prior to my arrival. However, the the last year, exactly two of my workstations which are connected to CTA100 units have decided they will no longer recognize the CTA100 devices which were attached.

The only two indications of a problem are:
[ul]
[li]a failure of the Nortel TSP drivers to locate the device and display the device status in the TAPI configuration screen of Windows XP SP3.[/li]
[li]an error in the Windows error log stating UDR008: The system cannot locate a device.[/li]
[/ul]

I have tried to isolate the problem by selectively swapping out hardware/software components (from a known working system):
[ul]
[li]CTA100[/li]
[li]serial cable[/li]
[li]power cable[/li]
[li]serial port/USB serial cable[/li]
[/ul]

I have also uninstalled and reinstalled the same version of the TSP drivers which the rest of the building uses successfully, and one of the two PCs has been completely reinstalled from scratch, due to an unrelated spyware infection.

What am I missing? Why won't the system detect an attached CTA100? Did update from Microsoft break TAPI (especially backwards-compatible 2.1 support) in a subtle way?

Thanks in advance for your help.

Rob

 

[allworxguy]

Make sure of your physical connection to the MICS. Check the port in maintenance.

Marv ccna

http://www.telemarv.ca

 

[regorob]

I forgot to mention that in my initial post... Thanks for pointing it out...

This CTA100 does successfully pass through calls to/from the M7324 attached to this CTA. I would think the physical connection is fine, although I will check on it.

Rob

 

[curlycord]

Were the PC's update in anyway as far as Windows version?.



=----(((((((((()----=
curlycord

http://www.curlycord.com

 

[regorob]

The two affected PCs are Windows XP SP3 with all of the latest patches. While I haven't yet taken the time to compare individual updates which have been applied to those machines as compared to others, I have a fleet of machines which are running a this same TAPI application just fine with XP SP3. These two machines are the only two which refuse to start the Norstar Launcher because they cannot locate the hardware.

They are connected to serial ports. Are there specific parameters that I need on the serial ports? 9600-N-8-1 is what the working machines have, and the two malfunctioning workstations are configured the same way.

Rob