Failed Windows Logons from computername$$

Failed Windows Logons from computername$$

We are seeing failed logons of Type 3 from almost every computer
typical failed logons - one computer of MANY
I'd very much like to get rid of these items but haven't figured out what caused them.
The name of the local computer in this case is: BREAKROOM and, apparently, that's where the computername of BREAKROMM$$ comes from.  There is no physical "remote device" then - in that context.
Also, I note that a large percentage of these failed logons are happening just after 12 noon.  Not all but most.

Any suggestions?