I have always taken my kids wellbeing before mine , but this is not the case with my wife . My middle son has not spoken or seen me over the last 2 months . Every time I go and pickup or visit my boys he is sleeping over at a friends.
He is 16 years old .My Eldest son has told me that he is being influenced by my Mother in law who stays next doors to them . But I thinks its both my Wife and Mother in law . As he has been the one she could always manipulate and not our other two boys. I contact my kids every day and even though he does not answer my calls , I leave voicemails and send him SMS�S.
Yesterday after dropping my other two sons off , I went over to my mother in-laws to say Hi . On entering her lounge I found my son sitting watching TV , He did not even look at me , I tried to greet him but he would not even acknowledge my presence or existence , neither did my M In Law . I was so hurt and Angry so all I did was say goodbye and walked out instead of making a scene.
My Family and Friends have advised me to just keep on leaving voice mails and SMS to my Son, so that eventually when he realizes the truth he will know that I will always be there for him.
I have asked my wife before if she knows what the problem is and all she tells me is . I must speak to him myself as she has not got any problems with him .
I don�t know what to do ,How does one deal with this , any suggestions

It sounds like you are doing right by continuing to try and leaving messages. Have you tried writing a letter, and asking him to do the same? If you do this, do not try to defend yourself or actions, but let him know how much you love him, miss him, and genuinely want to hear what he is troubled out. When he does eventually speak to you, try to listen first without defending yourself right away. Clearly he is hurting. In the meantime, ask your lawyer if you have any legal rights in regard to visitation with him. Not that you would want to force his hand at his age, but you could put a bug in your wifes ear if she is in noncompliance. Finally, find a family therapist who would be willing to see you both separately, then together for some counseling. Good luck!