Windows 7 Problems connecting to a network

[drowny1]

Can anyone advise how I would go about fixing this. I am trying to connect to a network (I have a dell running on windows 7) and it keeps telling me that windows is unable to connect to the network-this is before I can even enter the security key. I know it is not a problem with the wireless because other people are able to connect to it fine.

 

[Saltgrass]

Do you have a MAC address filter on the router?

What does Network and Sharing center show as far as red Xes, and have you tried the troubleshooter. Are you in a private network?

 

[patcooke]

Have you got your wireless adapter set to automatically acquire both IP and DNS addresses?