Hi There i bought an 8900 curve last week which i think is a great phone however when i connect to my wifi @ home after about half an hour it turns itself off i then cannot get it to connect again. I go to the manage connections and it tells me that my wifi is turned on and the little logo is on the main screen but i cant connect. when i go to the wifi connections i can see the wifi profile that i have set up but at the top where it says active wifi connections it says none. when i go to set up a wifi connection, i scan for networks i find my network but it says it is unable to connect to that network and that it is already in my list. the only way i can then connect back to my network is to delete the wifi profile and start from scratch. any ideas on how to sort this out?

thanks