Wireless problem, laptop find network but won't connect

I see a wireless network in my laptop but when i try to connect it says can't connect, i don't know why, is somthing missing to make the connection. Help i'm a beginer in the wireless technology. My laptop has an Intel pro wireless 2200 bg

Is this your wireless network that you're trying to connect to?

No it isn't my netrwork is a near ap to my house. It seems there is a router in that network with an ap. The router brand is Encore. Internal Ip are 192.168.0.x and the router internal ip is 192.168.0.1. I don't have fisical access to the router to see the configuration. I hope this help.

When you try to connect to the network does it say it can't connect at all or does it say "Limited or no connectivity"? What is the signal like to the network?

It may be that your signal is too low or there's too much noise and it can't establish a clean connection.

It says can't connect, the signal in the Intel Proset/Wireless is almost full, only one line is missing on the signal indicator. How do i know if theres too much noise. Do i need the AP ip to make the connection?. If i do, how i discover the AP's ip. All i wanna do is use Internet.

This is the network information:

AP signal: 4 lines
b
channel 6
00:02:6f:3a:4b:71
Ap Senao Intl
ESS (AP)

The netstumbler info is:
( SSID ): ( d6db54 )
Type: BSS
( BSSID ): ( 00:02:6f:3a:4b:71 )
[ SNR Sig Noise ]: [ 39 88 49 ]
# ( Name ): # ( )
Flags: 0001
Channelbits: 00000040
BcnIntvl: 100
DataRate: 110
LastChannel: 6