Namaste... I am using a ZTE MG880 usb modem on my windows laptop for 3 years and the GUI has an auto-reconnect option. Once checked, the network is really stable... otherwise it regularly loose the network (every 3-4 hours) and one would have to click on CONNECT each time again. On my MBPr with Mountain Lion... I get disconnected every 3-4 hours, every time and again. In Network Prefs under PPP i checked the "connect automatically when needed." But that has no effect. I wish some utility or piece of code would simply do the one click action needed to reconnect to the network when it jumps and then I can think of something else in my life. At worst, if a utility can do a sound when the network jumps, that would allow me to be alarmed. Rather than keeping an eye on my connection ALL THE TIME! Any tip very appreciated.