Unlearn (?) wifi connection on iphone 4

[Mac'nCheese]

I have my iphone 4 set to only use wifi on trusted/learned networks. I shut the search for wifi feature off. Sometimes at work, it switches from my perfectly fine 3g connection to this horrible wifi network somewhere in the building. Instead of having to completely turn off the wifi connection, can I program my iphone to not pick up this connection on its on? Thank you.

 

[CSMchris376]

You will need to do this when you are in range of this particular network, go into Settings, then Wi-Fi Networks, then click on the blue arrowhead on the right and when the information for the network comes up, touch "Forget this Network". It will then forget that network, and if you have "Ask to Join Networks" turned off, it should not connect to, nor ask you about that network again.

 

[Mac'nCheese]

Thank u for the advice. Just forgot the crappy network and my phone says it's still on 3G and working fine.