Unable to repair NI-VISA Ethernet Passport

Hello Everyone,

I'm using an 8-Ports RS422 adapter connected to the PC through an Ethernet port (RJ45).
It was working fine with both LabVIEW and NI-MAX, but suddenly it stopped working.
When I try to initiate a session with any port, I get a BFFF0000 error in NI-MAX.
and Error: Property Node (arg1) in VISA Configure Serial Port in LabVIEW

The 8 ports are shown in the device manager and defined in NI-MAX with a warning sign next to each port.

I tried to reinstall NI-VISA and repair it after the installation, and I got the following message: Unable to repair NI-VISA Ethernet Passport.


Any thoughts?

Thanks,