Hi,
I'm starting to think this is a bug, or some physical issue. There are 8 Cisco 2960SC 8 port switches as edge POE switches for phones.
7 of them are working fine, 1 is not.
The core switch stack is the STP root for all VLANs, but this one edge unit is not receiving any BPDUs for any of its VLANs except VLAN 1. The upstream switch is sending BPDUs. Entire network is running PVST and the configuration is consistent across all of the 8 2960SCs.
VTP is running, and is also consistent throughout. Native VLAN is 1 everywhere.
No pruning, all of the requisite VLANs are allowed on anything that should be trunking. Also not a priority issue, nor is there any BPDU filtering or ACLs anywhere.
Tim