We are currently using multiple HP ProCurve V1810-48G switches in our environment which we believe are causing issue with GPO based software installations. This problem surfaced after installing SSD drives into new laptops which seems to have sped up the boot processes enough to cause issues. We cannot reproduce this issue using HDD's.
It feels like the issue is related to Spanning Tree support. The computer appears to be making the connection long enough to satisfy the "wait for network" condition, but is being disconnected prior processing the GPOs and contacting the file share. joeqwerty commented that the root solution is to turn on PortFast or the equivalent, but this setting is non-configurable on the V1810.
I had found information on modifying "GpNetworkStartTimeoutPolicyValue" to specify a wait time before continuing to boot, however as soon as the network is detected the Timeout expires and booting continues. Modifying this value has no effect in testing. I tried inserting a startup script to ping localhost for a set amount of time to induce a delay as suggested in other places online, but that method also did not have the intended effect.
It seems the simplest solution is to upgrade the switches to a model that has this feature exposed but at this time that is not an option I have available.
Does anyone know of a workaround that could force the boot process to wait for the duration timeout even if the network is detected briefly?