Difference setup of F5 between F5 v11.3 and v13

Hi,

 

Many moons ago my company bought the cbtnuggets F5 training by Keith. It was good as the time.

 

Now I am setting up a lab with F5 v13 and having problems.... F5 cannot ping web servers Nodes/Pool/pool members show status up in red and not green.

 

Am I missing something?

 

Appreciate an answer

 

Thanks

 

TJ