Nokia :: Access To Internet Via Wireless Modem E51

I have set up a WLAN access point on the phone to access the internet and email via my wireless modem/router.Problem is, once I make one internet connection, it doesn't allow me to make another or to connect to email, even after the first connection was closed.

If I delete the WLAN access point, I can access the internet and email no problem but I need to select the WLAN and enter the key first.Seems like a problem with my WLAN access point settings.