Why am I having a hard time getting child support?

I’m currently going through a divorce, I went to family court in the state I live for child support and they dismissed the case. My divorce lawyer says the state the divorce is pending in has no jurisdiction for child support, that I have to go through the state me & my children live in. The father of my children is currently working a contract job overseas and will not pay child support. He’s been working there for almost a year now and he is still denying that he has a job. I’m so aggravated that my children has to live on food stamps while he’s making all this money and spending it on his fiance. There’s got be something that can be done until the divorce is final.