I just tried one more time. now, i changed conf to manual, added IP 192.168.1.123 in xbox, and reservated this ip (with xbox mac) in Dhcp client list, and !in card DMZ, added this IP and enabled. now it's connected with router (network). error is in connecting to Internet step.
Z: 8015 - 1904
L: 0015 - 10F1
Q: 8007 - 0435
T: Cable Connection
A: 192.168.1.123/ 255.255.255.0
Error saing: DNS Error
so i copied DNS servers from my ISP, and from quick error it became into long time trying.
i tried cmd-> ipconfig /all
in command DNS server is 192.168.1.1. Tried to and dont work.
Ideas? DNZ helped it's something!!!