Who is printing with support and ABS? What kind the material you use?

I´m printing with HIPS and ABS from MakerBot, but I had a problem when the part is on support with HIPS because the materials not fuse.

I don´t know if the problem is on the materials or is a setting on the slicer.

Can you say me what is the better option or how was your experience?

Thank you.