Hi Dave,
Not enough information in your posting.192.168.1.254 is the factory default setting on that switch.
Is the PC in the same vlan as the Management IP address ?
Can you post a screen capture showing ;
1. IP settings screen to i can see the Management vlan the switch has attached to?
2. Vlan screen, the table or graphic showing the untagged vlan that the PC is attached to.
regards Dave