I have Windows 7 64-bit connecting to a hybrid Windows/samba network. On boot, Win7 takes 1 - 2 minutes to negotiate a DHCP lease; set to a static, it takes about the same amount of time to connect. Other Vista and XP PCs connect in seconds. I have tried: Replacing the switchEnabling Spanning Tree Protocol and Fastport on the switchReplacing the DHCP server/gatewayUpdating the Win7 NIC driversSelectively disabling components in startup (removing the Nero components helped a bit)Disabling IPv6 and Link Layer Topology drivers in Local Area Connection propertiesChanging from one firewall (Forticlient) to another (COMODO) - both 64-bit I've searched high and low for other solutions, but no success. Any advice would be appreciated.