Hi
I've created a GPO to turn on Network Discovery on our company laptops as our AV server isn't able to discovery a number of clients for an update roll out. I've enabled the both "Turn on Mapper I/O (LLTDIO) driver" and "Turn on Responder (RSPNDR) driver" in Computer Configuration > Policies > Administrative Templates > Network > Link-Layer Topology Discovery. I've set it to only apply to the Domain network. I then applied the policy to the OU containing the laptops and scoped it to the default Authenticated Users group.
Group Policy Modeling shows that the policy is applying. However, Network Discovery is still turned off on laptops that should be applying it.
David