there can’t be serialosc.exe. serialosc ships with 3 executable binaries:

  • serialoscd.exe
  • serialosc-detector.exe
  • serialosc-device.exe

the main daemon (serialoscd) and the device controller (serialosc-device.exe) should be allowed to listen to network, even when you’re disconnected from a physical network, because the apps communicate with serialosc via network sockets on the local machine.

in your case, it looks like the main daemon is working well, because you see the device in max, but there’s an issue with the device-specific process (serialosc-device), which might happen because of the access restrictions.

Yes but shouldn’t it work when I disable my firewal ?

Don’t know, I never tried disabling firewall on my windows box.

Ok thank you very much for your help. I’ll have a look at that.