My Hub was terrible after the update. 3 days of numerous devices connecting then disconnecting. FireTV sticks, Smart TV's, Amazon Dots, Friend lamps all reporting no internet when they were connected, unable to load the hub manager web page for hours at a time. Web browsing timing out and failed DNS lookups.
It appeared that the Hub was doing some CPU/Memory intensive task in the background, but of course there is no command line access to do a "top" command or anything else to find out what was going on.
Day 4 now and "touch wood" things have settled down and returned to normal. I'm still having to check many devices and get them back online but "crossed fingers" everything is mending.
