Unable to set listener IP on Multiple Availability Groups

Hi All,

I have 3 Databases and for each Database I have set up Availability Group. On 1st Group I have setup listener IP. Using the same Listener IP I am able to access other Groups as well. But when I am trying to add same Listener IP to other Groups it is giving me error. Can any one recommend the steps what I am missing here. Also i tried to Add other Listener IP to other Groups that is also not working. Please suggest