We have an HP EliteBook 6930p, runs Windows XP Pro (Ver 5.1 Service pack 3). Intel 82567LM Gigabit NIC whilst using Wireshark/Wincap to capture data on this Internal NIC we only get Unidirectional traffic. Has anyone seen anything similar whilst using a similar setup. We have tried a different machine HP desktop HP Compaq dc7700p, running Windows XP Pro (Ver ?? Service Pack 2). Intel 82566DM Gigabit NIC. and this captures two-way traffic. Just wanted to rule out anything XP SP3 or driver related.