loses connection after 1 or 2 minutes (with a mac)

[folkertvanheusden]

Context

• What board are you using ? wemos d1 esp32 W5500 ethernet shield
• What version of the Arduino IDE are you using ?
  • platformio
• What Operating System are you using for the DAW
  • [X] Linux
• Is your problem related to:
  • [ ] Setup
  • [ ] Connecting
  • [X] AppleMIDI <> MIDI
  • [?] Dropped messages
• How comfortable are you with code ?
  • [ ] Complete beginner
  • [ ] I've done basic projects
  • [ ] I know my way around C/C++
  • [X] Advanced / professional

Describe your project and what you expect to happen:

As a test of a W5500 setup I took the example-code for the ESP32/W5500 combination. I enabled all logging and added a tiny bit of code to show the millis() for each logged line.

Describe your problem (what does not work):

I "boot" the wemos and let a Mac (macos x 10.7) connect to it via the midi-panel. Everything is connected directly via the same gigabit ethernet switch.

Now after a while (around 1 or 2 minutes) the communication stops with a timeout (the mac complains about that). After that, communication cannot be restarted (unless I reset the esp).

Steps to reproduce

I'll include my modified version and a logfile showing what is happening.

problem.zip

[lathoub]

I don't have an ESP32 and W5500 at hand, but a wESP32 is running happily for 30 minutes now (similar code).

You indicate Linux above, but talk about Mac (MacOS 10.7) - are you using Linux to talk to the ESP32?

[folkertvanheusden]

The Linux-system is for developing the code for the esp32 while the Mac is used to test against.

[lathoub]

What does Wireshark look like? (filter on rtpmidi || applemidi)

[folkertvanheusden]

Here it is! mac.pcap.zip

[lathoub]

Thanks @folkertvanheusden

Its looks like 151 (Mac) send Syncronization to 152 (Arduino), but does not get a response (message nr 1243), ultimately leading to the Mac Ending the session. Also, ReceiverFeedback is not written from the Arduino to you Mac.

Can you add some debugging statements in ReceivedSynchronization (n AppleMIDI.hpp) to check if the writeSynchronization is written.

Also add some debugging in manageReceiverFeedbackand manageSynchronization (to check is the code is called and what is written back)

[lathoub]

I modified the NoteOnOffEverySec example to send a note on/off every 50ms and receive MIDI notes from MIDI-OX at a high rate as well. Attached the Wireshark dump. AFAIK all is fine: Synchronisation is balanced an d ReceiverFeedback is also happening. Here is the dump: wsdump.zip (sort the Info column to see the groups of messages)

Are you running from fresh source code from the repo? (I know, silliy question, but it caught me multiple times in the past). Also: don't use Ethernet3, that is known to stall, use the vanilla Ethernet lib that ship with the IDE.

[folkertvanheusden]

Hi, I have not been near the Mac today unfortunately. Hopefully soon.

[lathoub]

@folkertvanheusden, any update on this issue?

[folkertvanheusden]

Hi,

No update yet, I've been busy with other things.

[lathoub]

@folkertvanheusden, i'm about to make this as stale, you can always reopen