I recently got a new modem and ever since then my samsung galaxy y wifi isn't working properly. When I turn on the wifi I put in the WPA code and it connects. The internet works fine for a few minutes but then the wifi inexplicably disconnects. It wont reconnect and when I "forget" the network so I can try to reconnect, my phone cant even find the network. I have to turn it off and turn it back on again every time i want to use the internet for five minutes. This never happened with my last modem but my sister has the same phone as me and hers still works fine even with the new modem. We also have an ipad, a laptop, a wii and a pc and the internet works fine on all of them. Is it my phone or the modem and what should I do? Please help!!!!