I'm sending UDP messages (using ports in 7000-7014 range) from a Mac to a PC running Windows 10 and back to the Mac and also sending UDP messages between programs in the PC.

UDP will work for awhile and then stop working entirely where no more messages can be sent or received internally or externally on the PC. The length of time UDP works before stopping varies (between 5-20 minutes). Restarting Max on the PC or restarting the PC itself seems to solves the issue and UDP starts working again. Throughout this I'm able to send messages back and forth from the Mac to another Mac, so the problem seems limited to the PC's UDP send and receive abilities. Has anyone experienced similar issues and found a solution or can point me in the right direction?

If I can't get UDP to work reliably would sending messages between the computers over MIDI, either with Midi Control messages or SYSEX be an alternative that could work?

The messages I'm sending don't need super precise timing, within 100 ms should be fine. Messages consist of a list of 2 or 3 integers (e.g. 1 1 53000). I'm sending between 1-10 messages every second.

The messages I'm sending don't need super precise timing, within 100 ms should be fine. Messages consist of a list of 2 or 3 integers (e.g. 1 1 53000). I'm sending between 1-10 messages  every second.

UDP issues -- are Midi Control Messages or SYSEX a better option?