MJ Maxwell

I run a Radio Station where my DJs connect remotely to RADIO DJ via BUTT using Shoutcast. Most of my DJs ( and i mean 99% of them) can connect fine and have no problems. There is that 1% that are just really having difficulties staying connected ( note i said staying connected). They can connect with BUTT no problem but then they are loosing connecting which in turn disconnects them from Radio DJ and then I have to connect them remotely again. I would like to ask if their is something they have to...