[Bob Brown]

You can reset the network clock by control-option-command clicking on the main link button (big green link button).

In Pro Tools 8.0, you must do this on all of the systems.

In the next version of Pro Tools, this behavior has been improved slightly in that you will only need to do this on one system and all other systems will reset their clocks.

Once the clock has been reset, it only takes a few seconds to reset.

Typically, you should never notice the network clock becoming unlocked. There are a few things that cause it to reset such as opening a session with a different sample rate. The relocking of the clock typically occurs before the session finishes opening (1 to 3 seconds).

I have seen cases where due to a slow network (or not having all systems on the same router/switch/hub and on a slow network) where the network clock takes longer to lock or might become unlocked.