I have problem with WinCC software. I have Siemens Lifebook E4010 Laptop (1.6 centrino, 512 RAM). When I install WinCC software my Ethernet connection become almost dead. I am connected in company on LAN, with automatic obtain IP adress setting. When I do from CMD, >ipconfig releas, then again >ipconfig renew I get preperly adress (server is giving good adress) but no way to see nothing on network. When I deinstall WinCC (without any changes on computer settings-only deinstall WinCC)- all problems are gone!!!! Why this fuc... WinCC kiling ethernet connection!!!! help!!!!!!!