NIDAQmx error -50405

Hello all,

not sure whether I should be asking this here or on some hardware forum.

I have a software that's been running for years on several different computer (Win7 I believe, I'm not the operator) and that recently started misbehaving, with a "NIDAQmx error -50405: NI Platform service: no transfer is in progress because the transfer was aborted by the client. The operation could not be completed as specified".

Now this is a software that alternates signal generation phases with signal acquisition, repeated every few seconds. Why would it start crashing after weeks of working fine ?

If it was on a single machine, I maybe could accept dying hardware as a cause, but it's happened on 2 systems so far.

Hardware is:

• NI cDAQ-9184 4-Slot Ethernet NI CompactDAQ Chassis
• NI 9263 ±10 V, Analog Output, 100 kS/s, 4 Ch
• NI 9215 ±10 V, Simultaneous Analog Input, 100 kS/s, 4 Ch

Any idea ?

Thanks.