Sync HD Loses Connection With No Session Open

[johnmichaelcaldwell]

On two computers, every time a session is closed I lose the connection to the Sync HD, getting this error: "Lost communication with the Sync HD. Check connections and power on Sync HD. Should I set the sync peripherals to MTC?" (With buttons "Use MTC" and "Keep Sync HD").

The Sync HD appears to work just fine with any session open but after I close the session I get the above dialog box almost every time I close a session. Satellite sync works fine throughout the session.

I've tried replacing the serial cable and reinstalling Pro Tools and the drivers. I think this started to happen after I updated the computers to MacOS 12.6.9 on the two Intel machines. I have a third silicon machine with the same OS and this doesn't happen.

Wondering what could be causing this? Has anyone had this issue before?

[Frank Kruse]

No idea what your specs are but I am seeing this a lot since upgrading to my new machine. I suspect it's a new bug with native, Mx Macs, PT23.6&23.9 or a combination of them all.

Quite often PT will say "communication to SYNC HD" lost or won't even find it in the morning. Shutting down and re-starting the machine usually fixes it. Re-launching PT does not.

Never happened on my old 5,1 cheese greater.

Frank.

[johnmichaelcaldwell]

Well, the thing for me is that it’s not happening on the Native machine. This only happens on the Intel machines.

Even after I click the message that it’s lost communication and the dialog goes away, if I don’t have a session open, the message pops up again.

[kosmokrator]

we were having the same issue on one machine, albeit with the Sync X. Computers are Intel MacPros (the new ones).

Seems to be a strange bug since it only happened on one of multiple systems that are technically identical.

Seems to have gone since our tech team upgraded the firmware on the Sync X.

[Frank Kruse]

And your PT version is?

[kosmokrator]

Originally Posted by Frank Kruse

And your PT version is?

sorry Frank, completely missed that..

We're on 2023.6

Problem reappeared tough, the techs cross-checked between different studios and the problem still happened with a changed Sync X, so seems to be on the PT machine side.

All other studios are on the same hard-and software version, so not sure what it is exactly..

[filmixer]

This happens to me occasionally. It might do it for a couple of startups and then will be OK for a month. I can always reconnect in Setups>Peripherals>Synchronization and just check the connect box.

PT 2023.9, Ventura, Sync HD