I have an Xfinity all in one router/modem, (model TG862G/CT) and I have been having issues with it. Sometimes, when I am connected to the wifi on my device, the wifi stops working, but it is still broadcasting the network. So I disconnect and try to reconnect, but it won't let me connect even though the network shows up. I'm pretty sure it is the wireless router part of the device because the computers that are hooked up directly don't ever have issues. Is this something fixable? Should I just buy a nice wireless router and use that to broadcast instead?