While this issue appears isolated, the next update will have enhancements around hub connectivity. The problem is not only with your network equipment, but rather somewhere in the middle. I had the same issue the other day. Usually rebooting the hub fixes the problem, but not always.
UPDATE: the next release is out. Please be sure to update to version 2.3.9.174 : Release 2.3.9 Available - #18 by gopher.ny
