Recording on 2 devices simultaneously

[thejadman]

I'm trying to record on my PC at the same time as my laptop, using wifi for the PC and my phone's data, hooked through a sound mixer to the laptop.  I have no problems with video and audio on my PC. However, the guests' audio will not play through the cellphone to the laptop, although this connection works whenever the PC is not included.  How do I use two separate simultaneous devices while using wifi for one and data for the other, so as to secure a backup recording if one or the other were to be disrupted?