Twitter co-founder Jack Dorsey developed Bitchat, a privacy-focused messaging app that works offline via Bluetooth without ...

The Router Pings, but No Internet. If your router pings the modem, but you still have connectivity problems, you may have a faulty Winsock catalog, a corrupt DNS cache or IP conflicts. To ...

Android: Swipe down from the top of your screen -- to access the Quick Settings panel -- and then tap the Airplane mode icon. Wait for your phone to completely disconnect from its Wi-Fi and cellular ...