I have VirtualHere licensed to a RPi4, have been running reasonably last year or so.
Connected via your KVM/IP solution I have 3 servers (2x Ubuntu, 1x Windows Server) as well as 4~8 IOT development devices.
Primary client is macOS Sequoia 15.x (currently 15.3).
Have always kept the server/Ubuntu and client/macOS software up to date but approximately a month ago the KVP side completely stopped working, all 3 servers.
I have updated/reinstalled and rebooted the server a number of times. The symptom remains consistent, the connection(s) show as established but no console window pops up for the target host.
Any suggestions?
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The first thing that comes to mind is maybe you are running the VirtualHere Mac client as a service?
The KVMIP viewer wont work when the client runs as a service.
In the virtualhere client Right click USB Service->Uninstall client as a service.
(I need to add a warning message about this when running the kvmip viewer as a service)
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Feedback from @Libremale, that was the problem/resolution.