Updates keep coming. I've held off on the 2 drivers but did discover something else of interest.
Seems there has been a prominent issue with XPS 8300 network cards as well, with a common fix being to replace the card. Dell's solution has been to replace the motherboard. However, I have stumbled upon a 3rd line of approach. Seems as though the MS virtual Wi-Fi adapter is incompatible with the Dell / Broadcom configuration. I have begun testing this hypothesis by disabling it and removing the drivers. Nothing yet.