We are running ZCM 11.3 and haven't made any changes to the system in a long time, but today I've noticed a lot of our computers pausing/hanging on the "contacting novell preboot policy service" message for up to a minute before continuing to boot into Windows (all PCs are set to boot to the network first to check for work). I tried restarting the various services and a full reboot of all Zenworks servers but still appear to have the issue. What makes it strange is that it isn't happening on all computers...

Anybody come across this before?