Solved: i can't connect to wireless

Hi. My name is Peter. For a couple a days i'm trying to set up the wireless conection and i cannot succeed. I have a modem/router huawei hg520b and i can connect to internet via cable but when i try to do that via wireless i receive the message ,,wireless association failed because windows did not receive any response from the wireless router,,. I have windows vista, 32 bits, SP2, my drivers are up to date. My settings in the web configurator in WLAN are :
access point : enable
channel id : auto channel select
ssid number:1
ssid index:1
broadcast ssid:yes
802,11 b+g
What can I do in order to succesfully connect via wireless?
Thanks in advance and sorry if this problem was discussed elsewhere in this forum.