Android AdMob ¿Why is always showing the same AD?

Problem:

Sometimes when you use the AdMob advertising in your application it will show the same AD over and over again.

Possible Solutions

- I suggest you login to your Admob account, in Sites & Apps panel, hover mouse on your android app, click Manage Setings -> App Settings, double check the Automatic refresh settings, make sure you are not using no refresh option.

- It is very common to return the same ad, as well as not returning any ads at all, the ads can have a specific target applications, which are with "higher" priority, so you are getting one of the ads that doesn't require anything in particular :)


Source: StackOverflow