COM adapter not working

[OnlyOne]

Hello,

i created a c++ program using the IviDMM classdriverfunctions.

The program is working fine with a PXI NI DMM (IVI-C).

Now i tried to exchange it with an Agilent 34980A DMM (IVI-COM).

But now i get error -1074118124 = "Unknown status code" or -1074118653 = Unknown status code. 

What can i try to make this running?

Thx for all tips

best regards

My setup is:
Windows 7 64bit

IVI Compliance package 16.0.1 (with checked COM-adapter option during install)

NI MAX 16.0.0.f0

NI-DMM

Ag34980 ivi driver 1_5_5_0

[AndreasGareis]

Hello,

this appears to be an issue with the Agilent IVI-COM Driver. There have been report of these errors when using the Agilent 34980A via GPIB interface.

http://forums.ni.com/ni/board/crawl_message?board.id=320&message.id=2018

http://forums.ni.com/t5/Switch-Hardware-and-Software/Agilent-34980-17500-Error/m-p/538180

http://forums.ni.com/t5/Switch-Hardware-and-Software/Error-1074118124/td-p/1411578

Could you change plug in the device via USB and test again?

Best regards

[OnlyOne]

The instrument is connected with LAN.