It would appear that Pulse Guiding Loss in PHD2 was due to trying to pulse guide using WiFi. I tested pulse guiding tonight running PMC-8 serial direct to computer. No incident of pulse guiding loss occured.
Mounts: ES EXOS2-GT w/ PMC-8
Lens: Canon EF 100-400mm f/4.5-5.6L IS II
Cameras: Canon 60D Astro Mod, Canon 7D2
Misc: USB-to-Cat6 Extender, Astromania Red Dot sight (Flash Shoe)
TELRAD, ZWO ASI120MM Guide Camera, Astromania 60mm Guidescope
Software: EXPLORESTARS IOS & WIN, Stellarium. Backyard EOS, StarTools, APT, DSS
Computer: 2012 MacBook Pro Bootcamp WIN 10