With out reading all 53 posts above, read thru and try the following:
1.) Pull the batteries from the camera. Leave them out. (If they’re anything more than a couple months old, consider changing)
2.) While they’re pulled out, unplug your sync module.
3.) Reboot your router
4.) Hook everything back up.
Other options, change clip record to 10 seconds, back out of menu and save the settings. Go back in and change back to what ever setting you desire.
If the issue still persists, contact customer support.