I did hear back from support (I appreciate the honesty):
Sorry for the hassle.
We have resolved a Filer problem that was a problem for several weeks.
However, the network situation is better but not completely cleared up.
The admins are doing everything possible to resolve the network issue and
should be back to normal shortly. I wish I had an ETA for you, but there
just isn’t one at this time. Each time we clear up the network problem,
a switch seems to break or lag in someway.
We are doing everything we can to get to the bottom of the problem and
will have a solution as quickly as possible.