Medical devices may have the ability to connect through a secure gateway to a network, including both local and external networks. According to the described system, a connection component of the medical device may include a wireless connection dongle system using a wireless adapter, such as a dongle, that is inserted into and/or otherwise coupled to the medical device and that transmits or casts information wirelessly, such as via real-time streaming, to a separate receiving display. The communication may be facilitated by another dongle inserted into and/or otherwise coupled to the receiving display that receives the casted display screen. This transmitted casting capability provides the ability to connect the medical device, such as a peritoneal dialysis machine, to other display devices to duplicate the screen of the medical device on one or more larger or more easily accessible displays via secure one-way communication.