Every now and then, I experience an issue like yours (not in the past 4 months though). My suggestion(s).....(FIRST) On your router, do a router refresh to clean up all info of previously connected wireless devices. This will clean the device history, and maybe give better connection activity to newly connected devices. You may even venture into changing your WiFi Connection Password while you're at it. (SECOND) On your TF300T, in your WiFi settings, and without connecting to the wifi, tell your wifi settings to "Forget" your ?Home? router connection. After your router reboots, and reloads all of its required stuff, you should not (hopefully) have any problems with successful and lengthy connections to your router with your TF300T. Additionally, you may want to check the wifi settings on your TF300T, to make sure that the wifi does not "Turn Off" when not in use. Since there are many variables in device signal strength (i.e. Samsung may have a better antenna, antenna placement inside device may be good/bad, or there may be RF interference that the TF300T picks up "better" than others). Hope any of this helps, or gives ideas.