I'm running .112 and have same issue as earlier with my SONOS system breaking the GUI - But i live with it - disconnecting the SONOS when i need to do config changes.
I was the one having erratic download and throughput speeds with .116
Reloaded 116 for the 3rd time and for the last 2 days download and throughput speeds have been as good as .108, .112 and .114.
What I learned: Flashing the firmware more than once (3 times) may be necessary to get things working correctly. Vram was cleared successfully each time using telnet commands. I did download .116b again and used it for the 3rd attempt. Maybe my original .116b DL was defective or was not loading correctly?