Sorry to hear of the problems at your end. Yes my summit was a very easy one to get to as I needed to be there by 0500 UTC to catch the long path window to Australia - which never worked unfortunately.
On the driver problem - I presume this is a USB connection between PC and rig? Often switching the physical port the USB cable is plugged into the PC on will force a re-install of the drivers and things start working again.
I hope you do get another chance to get out and if so, I’ll make the effort from this side to get to a better summit to try to work you from.