I have3 WiFi APs connected to HP Procurve 2510 all in the same VLAN. When I roam client from one WiFi AP to other, I loose connectivity to LAN. For few minutes I can ping and access only asociated AP but nothing else on LAN. Aparently switch does not forward. I thought the SPT is to blame, so I turned it off but (to my surprise) the problem remains the same!
When I connect the 3 APs to small stupid switch that is then connected to the Procurve, it roams like a charm.
Ludek