I was having issues with the Coby 7015 unit coming out of standby and WiFi not working sometimes and I'd have to turn it off and back on or sometimes reset the unit. This evening I went into the WiFi settings and hit the menu button, went into Advanced. Under "Wi-Fi Sleep Policy (Specify when to switch from Wi-Fi to mobile data)" I changed it to "Never", as the Coby does not have Mobile Data services. This seems to have cleared up quite a bit of the issue so far. I'm using "Battery Booster Lite" to turn off/on WiFi when the screen is locked/unlocked so that may have been making it worse, not sure. Still using Battery Booster Lite with the aforementioned setting, though, and things do indeed seem better than they were. Hope this helps.