OK, didn't realize you are getting same behavior from 2 different hubs. Kind of using the process of elimination here. Understand your frustration. You already tried different keyboards with same result.
Now it comes down to is this a possible Insider issue. Can you try these docks on any other devices, a friends maybe to see if it is consistent. As you mentioned it happened suddenly, do you recall what build of Insider this started on? Does this occur with
a Release version as well? That is why I would like to determine if it is in fact an Insider issue.
Suggest you file a Feedback Hub report and share the link in this thread so that Eddie (MSFT) is aware of this. You might want to record the issue occurring in the report for the engineers.
Regards,
Edit: Does this exhibit the same keyboard behavior if you disconnect all the other devices from the dock? Perhaps it is overloading the power output of the dock. You do have a few items that would be drawing lot of power attached.
Here's what I have found. When the keyboard is connected through the Anker hub to another computer, then it doesn't glitch out.
When the hub is connected to my PC, be it through the port on the Surface itself or the Surface Dock, then keyboard disconnects.
When the keyboard disconnects, windows doesn't make any sound, like it does for all other devices when connected/disconnected.
I unfortunately don't know anyone with any kind of surface device, so it is impossible to test out the Dock.
I have made a feedback entry on Feedback Hub
All these rules out the following:
1. The keyboards being faulty
2. The Anker hub being faulty
3. Power being the issue
4. Drivers (I uninstalled and reinstalled them)
I can safely assume that the hub isn't the issue.
Windows may be the issue, because when I reinstalled Windows, I was still enrolled into the insider program.
It seems as though my Surface is allergic to keyboards, by only when connected to hubs.
Any ideas that come to mind with this data?