Troubleshooting communication after Windows 11 update

Installation & Configuration Windows
1

Hello, I have a problem of communication between OSC and Cubase 13 since a Windows 11 update was installed. I use Loopmidi to make the link. My OSC server and client are ok but Cubase does not receive any command anymore. I have added Loopmidi in my windows security firewall settings but without any result. Any help to troubleshooting the communication is welcome. Thanks a lot

2

Hello, I am still struggle in the communication betseen OSC and Cubase. I have stop my Defender firewall and anti-virus without result. I don't fin any cue in this community. Any help is welcome. Here find my setup.

OSC
OSC1163×719 44.5 KB

Loopmidi
Cubase
Cubase1095×519 21.1 KB

Thanks a lot

3

The midi config is probably incorrect : the screenshot shows your "OSC" device is connected to your hardware MIDI interface, you probably want to connect it to the virtual loopMidi port. Click on "List MIDI Devices" and update the midi config so that it connects to the correct ports. You can use port names instead of numbers to avoid the config from breaking when the port numbers change (which is what probably happened here):

OSC:2,3

would become something like

OSC:OSC,OSC

since your loopMidi port is named "OSC". Note that you may need to create two loopMidi ports, one for each direction ("osc2cubase" and "cubase2osc") if you experience midi loop issues (I remember people had such issues with loopMidi, I don't know if that's still the case), then the config would be:

OSC:cubase2osc,osc2cubase

And in cubase:

Input port: osc2cubase
Output port: cubase2osc

On a sidenote, setting port / osc-port to 5000 while setting send to 127.0.0.1:5000 can't be good, you're just sending every osc message back to open stage control (even though you may not actually use osc messages if you're only using MIDI, there's no good reason to create such a loop)

4

Merci beaucoup Jean-Emmanuel. I can used OSC again thanks to your reply. So, for unknown reason (Windows update or others) my midi list order has changed. I use names in place of number now, as you recommand and everything works fine. :pray: Merci d'avoir créé un tel outil qui me fait gagné beaucoup de temps dans mon processus de composition.