The latest generation HP computers with solid state drives and Win 10 are booting so fast that Multiple Spanning Tree Protocol is not allowing network access in time for Group Policy to process on startup.
• Always wait for the network at computer startup and logon: This is already enabled. Ethernet link negotiation has finished, Windows thinks the port is up, but MSTP has the port blocked for a few seconds while it determines there is no loop.
• Startup Policy Processing Wait Time: Doesn't help, Windows has every indication the network stack is ready, but the switch is blocking comms as per above.
• PortRapid: The documentation for the HP Switch says it already detects which ports are likely workstations and enables rapid MSTP detection.
• Disable MSTP: Possible, but it means a user can take down the entire network by plugging in their phone incorrectly (ie connecting their two ports to the phone, etc). Disabling MSTP does mean Group Policy processes correctly.
Old computers are fine, they take 20+ seconds before group policy begins application. These appear to be processing it in ~5 secs.
Anyone have any bright ideas to make Win 10 wait for network communication to succeed (not just for it to be reported as hardware connected) before it begins processing Group Policy?