Random 'wake up' when in Power saver/screensaver mode

[Pipe]

Hello.

We have T29G phones running firmware: 43.83.0.10.
We are using freePBX 14.0.2.18 with Asterisk 13.19.1

The phones seem to 'wake up' randomly from being in a screen saver state or power saver mode. I did see in the documentation that a BLF light change can cause the phones to wake up, but I'm seeing this behavior during off business hours when no one is using the phones. Watching asterisk with verbose showed no activity whatsoever yet the phones will randomly wake up.

Most of the phones are connected to a PC using the phone's internal switch. Could some sort of network traffic from the PC be causing the phone to wake? I do have a few phones NOT connected to a PC, and they will wake also, sometimes at different times and not as much.

Any areas where I can look to track this down or confirm this suspicion?

Not the end of the world, but distracting when the phones lights up for no reason.

Thanks for reading and any suggestions.