Reconnection issues with Mac (from sleep)

Hi, I have only had BT infinity for a few days now, but this is driving me mad already.
When I turn my computer on, I don't have any problems, finds the network straight away, connects and I'm ready to go. However, if I put the computer to sleep/standby (close the lid), when I want to use it again, although it shows I'm conncted to the network, nothing will load, I get the 'your not connected to the internet' message in my browser. The same with emails etc, can't find the server. no matter how long I leave it, it won't sort itself out. I have to manually turn wifi off and back on again to rectify the problem.
As you can imagine, this is becomming a bit of a pain, so if anyone has any ideas I would be most grateful.
Cheers
djt1

Ermm, now if you go to the Airport Icon and click on Network preferences, and then the wifi networks have you made sure BT Fon or BT Openzone are not set to connect? If they are in there then delete them.
And the only other thing I can think of would be to Remove the Wireless Network in question, restart the mac, and then re-add the network, restart again, and then see if you still have the same problem from putting the Mac to sleep.
Regards Edd
Check your Line
BT Speedtester

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