New mioXL : rtpMIDI issues

Been putting recently purchased mioXL through it's paces, and mostly everything is good, however there are a couple of niggles on the rtpMIDI side:-

1) Setting rtpMIDI to be "Initiator" does not seem to be working for me (Windows 10) - the mio connection shows as participant on the DAW/Windows side (rtpMidi app), but the connection never updates in the mioXL (IPAddress / Port). So even though it looks like a connection has been made in Windows, it is not working and no MIDI is sent.
2) Even sessions with the mioXL set up as Responder have a few issues - e.g. my FaderFox PC4 editor cannot "Send to PC4" using it's editor over rtpMIDI - it gets a checksum error (strangely the editor can receive from the PC4 ok over rtpMIDI). When I connect using USB DAW and use the FaderFox editor directly (HST1) i can send / receive perfectly. 

Connecting via ethernet was one of the big draws of the mioXL, reduced cabling and USB ports on DAW, but obviously it needs to work! I know from other MIDI dev work i've done that some devices don't like MIDI data to be transmitted too fats (BOMEs send SX has a throttling ability), i'm wondering if rtpMIDI is possibly too fast?

Any insight / ideas would be appreciated! I will keep reading up / digging more into rtpMIDI and see if there is anything that can be tweaked.



  • An update on this, it seems that rtpMIDI does not like anything Sysex. PC / CC / NoteOn etc all seems ok, but Sysex over rtpMIDI is not at all reliable.
  • That's a BIG problem as it completely knocks out control of a vast number of synths where sysex is required for control.  What's the point of RTP MIDI if we need to plug in a usb cable for half of our synths? It also totally kills the value of the X series since a standard USB cable can only carry 16 ports.  I guess that with the mio XM it's fine, but the MIO XL becomes useless beyond 16 ports. Am I missing something here?
  • This was a problem that we've since fixed in firmware. 
    Please update past 1.2.0 and you should not have the same issues.
  • I wonder if I'm having the same issue as you. I'm using Ableton Push 2 as a controller directly connected to my computer via USB. Then all my synths are connected to the MioXL via USB and the MioXL is connected to my network via Ethernet. In Ableton Live I go to send midi from my Push to any synth over RTP and I am getting dropped notes. If I plug up the MioXL directly to USB to my computer, it works flawlessly. I am on the latest firmware too (1.3.1). Any ideas!?
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