I will do some more tests from my end to make sure everything is squared away. I will also be looking into some of the invalids to see if I can capture some data coming back.

Thanks,
-Uplinger

Same here - returned 8 units about 10 minutes ago. All invalid.
Expecting similar results when I get a second machine to send in its work.
There are still several fah2 units in progress on this machine, and they've been uploading some of their intermediate files. If things stay true to form, they'll also return invalid when they complete throughout today and tonight.
Given my current statistics it looks like units are properly granting credit and time eventually, but it would be nice to have a confirmation that this invalid status is supposed to be happening (when credit is granted the results remain invalid).
It may also be worthwhile to add a section to the project FAQ, letting members know what to expect.

A confirmation from me too... Result of offline crunching may be - all trickles refused, task marked as "No reply". This project is fatal unfriendly, unfortunately...
-Edit-
Here is one possibility for the project to be more friendly. The project may use experience from climateprediction.net (CPDN).
CPDN server accepts everything! No matter, when the trickle was received...

I understand how you feel. Unfortunately it is just the nature of this project.

It would appear that units, even when calculated entirely online, still have a decent chance of returning invalid.
I recently returned a fah2 unit, and know the machine was connected to servers the entire time, but still got invalid.
I also returned a unit yesterday morning from a machine that had calculated it offline, and received valid and full credit (invalid units receive quite a bit less than full credit when they finally begin to be counted - I expect 340-360 for the 480 claimed recently).
My guess for the reason behind this is that the client appears to no longer be sending trickle messages to the servers. Therefore, unless updates are manually forced by the user when the unit is >90% complete (as yesterday's unit was because I needed to refill the cache for the machine), then invalid results are guaranteed, because all trickles must be received prior to completion for a unit to be valid.
This is obscenely frustrating. I really don't have a consistent enough schedule to get to the machines and force an update when fah2 feels like being 90% complete, especially if that point happens in the middle of the night. Leaving network connected to offline machines when its needed is something I might be able to do, but manually forcing trickles is beyond me.