After purchasing new WMRS200 I realized that it sends many more packets
than WMR88A did (before I broke it..). And this can lead to problems
which were meant to be mitigated by:

d9a83cd3760195c55dbfcd58a9a2679f2b964bb2

This will simply throw away data when this happens (e.g. once a week or
so with also processing data twice as often).