One thing you can do try to fix this is to reboot your router by unplugging the device. Wait a few seconds before turning it back on, and then try to reconnect to the WiFi network. Another option is to completely disconnect from your tablet's WiFi connection by turning the WiFi off. Once disconnected, turn the WiFi back on and try reconnecting. If this still does not work, try changing the wireless channel on the router. To do this, click on the WiFi setting, and from the drop down menu, choose a different channel to see if the device will connect. You can check out the Acer One 10 S1002 145-A's troubleshooting page for more help on wireless connection issues.