Play Store won't download or update apps

I am using Samsung Galaxy Duos GT-I8262. Yesterday I encounter this strange problem. Whenever I download or update an app from Play Store, it only shows downloading bar and the app won't download in a century. Things which I have already done:

1. Clearing cache/data playstore and play services


2. Deleting google account


3. Enabled download manager


4. Rooted phone and edited hosts file by inserting # in the start of 2nd line


5. Reset the phone twice


6. Checked phone date and time

In short, I employed every possible solution but still no luck. Any other solutions?