Mobile Data On but No Internet Connection? How to Fix It Step by Step Mobile data may appear active on your phone, with signal bars showing at the top, yet the internet does not work. This is a common issue on both Android and iPhone devices and is usually caused by temporary network or system errors. Why Mobile Data Shows Signal but Internet Does Not Work This problem usually happens due to one or more of the following reasons: Temporary network connection failure Incorrect mobile data session System cache or background process issues Misconfigured network settings The good news is that these issues can often be fixed in just a few simple steps. Step-by-Step Fix for No Internet Connection Step 1: Toggle Airplane Mode Turn on Airplane Mode and wait for about 10 seconds. After that, turn Airplane Mode off again. This forces the phone to reconnect to the mobile network. Step 2: Restart Mobile Data Go to Settings , then open Mobile Network . T...